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5 1D: 6.43 dG4, 7.19 dG8, 106.83y, a = 1.432". Component B has possible invisible companion, period 6.9y. 6 1D: compound multiple. 12 1D: compound multiple. 14 1D: SB1. Blue companion? 20 1D: 6.6 A6IV, 6.9 A8IV, 456y, a = 0.924". Combined mag and colors. 23 1D: Combined mag, color. 24 1D: Primary F4III, comp. B, F3III. 26 1D: Companion 9.44V, +0.34(B-V), -0.14(U-B), G5Ve. 29 1D: Suspected occultation double. 32 1D: AB, compound multiple, combined mag, color. Component B, 8.2 F3/5 IV, HD 662. C, 14v at 20". 40 1D: AB 6.7 G3III, 7.5 F2IV, 368y, a = 0.564". ADS 161C, 10.37V, K0, at 18", physical. 46 1D: compound multiple. 50 1D: Component A is SB. ADS 191B, 7.3v dA7 at 12". Period apsidal motion, 3y. Possible radio binary. 55 1D: 6.8 B8V, 7.1 B9V, 1600y, a = 1.260". Combined mag, colors. 56 1D: compound multiple. 60 1D: Fixed separation 70 1D: compound multiple. Companion F3V. 74 1D: Component B, 12.87v at 63", optical. 81 1D: B9.5, A2. 86 1D: Optical. 91 1D: ADS 328B, 8.0 at 0.2". However, ADS 328 appeared single in 1953. 97 1D: Suspected double probably single. 99 1D: A* 2.38 K0III, 10.538y, a = 0.072". 108 1D: 7.2 G1V, 7.2 G1V, 5.625y, a = 0.134". Combined mag and colors. 113 1D: ADS 412AB, compound multiple. 114 1D: ADS 409B 13.3v at 3" compound multiple with A. 117 1D: Optical. 123 1D: 5.5 B7.5V, 5.8 B8.5V, 640y, a = 0.586". Combined mag and colors. Components 14 and 13 solar masses. 125 1D: Optical. 126 1D: compound multiple with HR 127 of which both are close binaries. Also compound multiple with HR 136. Faint companion at 14". 127 1D: CD 4.9 A2V, 5.6 A7V, 44.43y, a = 0.385". Combined mag, colors. D-C = 1.17V. 132 1D: ADS 449A is triple occultation system, 6.2, 6.9v, separation 0.031"; third component 8.8v at 0.196". ADS 449B, 9.7v at 27.5". 132 2D: AB are compound multiple. 134 1D: ADS 455AB, compound multiple. B, 10.4v K0V. C, 12.3v at 60". 136 1D: Short period binary. Both components A-type. Separation 0.099". compound multiple with HR 126 and 127. 142 1D: AB 5.6 F7V, 6.3 G0V, 6.92y, a = 0.23". Combined mag, colors, spectrum. 154 1D: AB 103000?y. Component B spectrum A6V or Am(A3/F0/F2), RV +11.9k/s. Component C, 11.4v, F3 at 55" optical. 159 1D: 6.3 G7V, 6.4 G8V, 25.00y, a = 0.670". Combined mag, colors. 164 1D: Companion optical. 165 1D: AB compound multiple. Component C, 15.2v at 48" optical. 167 1D: Binary. 168 1D: D is 8.5v K2IV-V, vsini <54k/s. All components probably optical. 178 1D: Suspected visual double is probably single. Resolved by speckle interferometry 1983.93, separation 0.145", but unresolved 178 2D: 1981.68, 1983.94. 183 1D: compound multiple. 185 1D: A0, A9. 192 1D: Physical pair. 193 1D: compound multiple. Companion F8. 196 1D: AB compound multiple. 199 1D: Primary F5III, secondary F6IV. 215 1D: AB compound multiple. Companions probably optical. 219 1D: AB 3.45 G3V, 7.51 K4Ve, 480y, a = 11.994". Combined mag, colors. Component B, vsini =<25k/s. Companions C-H optical. 219 2D: A possible invisible companion with period about 40y. Component B, 7.51V, +1.39(B-V), +1.03(U-B). 225 1D: The two companions probably optical. 227 1D: compound multiple. 230 1D: compound multiple with HR 231. 231 1D: compound multiple with HR 230. 245 1D: Optical. Combined mag and color. 247 1D: Fixed separation 250 1D: AB compound multiple. Component B, dG4. 251 1D: Primary F4IV, secondary G0V. 253 1D: AB optical. 254 1D: AB 6.23 A1V, 6.89 A4V, 360.4y, a = 0.700". Combined mag, colors. 258 1D: AB 6.02 G6IV, 6.41 K6IV, 164.68y, a = 1.014". Resolved by speckle interferometry 1983.94, separation 0.68". Combined 258 2D: mag, colors. 264 1D: AB compound multiple. 266 1D: AB 6.0 B8V, 6.6 B9V, 83.4y, a = 0.252". Total mass, 6 solar. Primary is a mercury-manganese star. 269 1D: All components optical. 277 1D: ADS 805, 790y. 282 1D: Visual binary with HR 283. 283 1D: Visual binary with HR 282. Color for blended images. 289 1D: 6.7 A3n, 8.0, 450y, a = 0.816". 294 1D: Suspected occultation double, 5.2, 5.2v, separation 0.25". 301 1D: AB binary. Component B, G8V. 308 1D: Visual pair optical. 310 1D: compound multiple with HR 311. Third component optical. 311 1D: compound multiple with HR 310. 313 1D: compound multiple with HR 314. Faint companions probably optical. 314 1D: compound multiple with HR 313. 318 1D: AB optical. 321 1D: A* 5.15 G5Vp, 21.43y, a = 0.186", mag diff 2V, separation 1.4". Subdwarf with five visual and one astrometric components. 322 1D: mag and color blend of close pair 4.2, 4.2v. C, 11.5v at 57". 330 1D: Companions probably optical. 331 1D: 5.8 A2IV, 6.2 A4IV, 28.5y, a = 0.209". Combined mag, colors. 335 1D: 4.6 B6IV, 5.5 B9V, 371.6y, a = 0.447". Combined mag, colors. Masses 16 and 10 solar. Resolved by speckle 335 2D: interferometry 1983.93, separation 0.64". 336 1D: Suspected visual double is probably single. 338 1D: AB 4.2, 7.0v close binary; vsini of B 87k/s. C, 7.0 F7V at 6.6" compound multiple. 348 1D: Unresolved by speckle interferometry: probably single. 356 1D: AB compound multiple. Component B, 10.25V, +0.79(B-V), +0.29(U-B), G1V. 360 1D: B compound multiple, 9.11V, +0.92(B-V), +0.25(U-B). 361 1D: compound multiple with HR 362 at 24". ADS 996A is close occultation double, 6.3, 6.3v, 0.05":. Component B, HR 362 is SB; C, 12.2 is 361 2D: 1" from B. 362 1D: compound multiple with HR 361. 366 1D: compound multiple. Component B, G7V. 368 1D: Component C is faint diffuse nebula, NGC 450. 377 1D: Quadruple system consisting of two close compound multiple pairs separated by 320": CPD -69d45, components AB, 5.1, 7.3, 5" and 377 2D: CPD -69d44, components CD. AB, 1222.4y, a = 7.64"; CD 7.8 G5, 8.2, 86.2y, a = 1.12". 382 1D: ADS 1073, quintuple system: A = NGC 457 #136; B, 12.3v at 49"; C = NGC 457 #131 = HD 7902, 6.99V, +0.42(B-V), 382 2D: -0.38(U-B), B5Ia at 134", vsini =<25k/s; D, 10.19V, +0.29(B-V), -0.47(U-B) at 179"; E, 10.63V, +0.28(B-V), -0.52(U-B) at 382 3D: 170". 385 1D: BC 7.4, 7.6, 21.5y, a = 0.136". Combined spectrum A1V. 391 1D: AB 7.1, 7.3v, binary, combined mag and color. Components C, 12.8v at 46" and D, 10.50v at 249" probably optical. 394 1D: compound multiple. 399 1D: ADS 1129B, 13.5v, 3" compound multiple with A. Component C optical, 9.18V, +0.66 (B-V), +0.34(U-B), Am. 402 1D: Probably optical. 403 1D: Unresolved by speckle interferometry 1981.69. 404 1D: 6.6 F3V, 6.8 F4V, 16.14y, a = 0.1884". Combined mag and color. 417 1D: AB binary, B 11.7v at 2"; CD 10.4, 10.4 separation 4.9" at 120" from A. 418 1D: Optical. 419 1D: Binary. Companion 9.38V, +0.19(B-V), +0.00(U-B), A8V, vsini 48k/s. 423 1D: compound multiple. 424 1D: A* 2.0 var. F8Ib, 30.46y, a = 0.038". AB physical; B, 8.20V, +0.49(B-V), +0.16(U-B), F3V, 0.0 color excess, 424 2D: vsini =<60k/s; C, 13v at 43"; D, 14v at 83". 426 1D: compound multiple. Component B is BD+7d214, 8.02V, +0.53(B-V), +0.06(U-B), G0. 436 1D: compound multiple. Primary K3.5IIIab, secondary G2V. 437 1D: compound multiple. 439 1D: Unresolved by speckle interferometry 1983.94. 443 1D: Probably optical. 458 1D: Both visual companions probably optical. 462 1D: 6.0 F3V, 7.1, probably combined mag and color. 466 1D: 6.8 F5, 7.2, 28.3y, a = 0.19". 467 1D: Possible radio binary. Visual companion optical. 477 1D: compound multiple. Component B, 11.53V, +0.65(B-V), +0.04(U-B). 479 1D: compound multiple. Combined mag, colors. Primary F4IV-V, secondary F8V. 482 1D: Third component mag diff 4.74v, 110" from A. Component B is K2V, optical. 483 1D: Astrometric binary 20y, a 0.12", mag diff 3-4v. Companion 25% solar mass. 484 1D: AB compound multiple; B is F2III; C optical. 486 1D: Binary with HR 487, q.v. 487 1D: AB 5.79 K0V, 5.83 K0V, 483.66y, a = 7.817". B is HR 486. Combined light HR 486-487, 5.07V. Spectra also classified 487 2D: K1V, K1.5V. 499 1D: 6.4 A2, 7.8 F0, 573.52y, a = 1.07". 511 1D: Component A, astrometric binary unresolved by speckle interferometry. 514 1D: AB 5.4 F1V, 8.6 G9V, 1192.2y, a = 4.652". C 15.0v at 15", D 11.5v at 142". Spectrum of secondary also classified K1V. 516 1D: compound multiple. 526 1D: Component C 8.4v at 21", D 10.2v at 137". 530 1D: Binary. Component B 7.3v A6V, P.A. 166d; RV, 1.8k/s, variable. Confusion in literature as to which component is HD 530 2D: 11154, which 11155. Probably combined mag and color. 531 1D: compound multiple. Companion, dG1 is HD 11131. 539 1D: Second visual component optical. 544 1D: Visual companions probably optical. 545 1D: Binary with HR 546, q.v. Combined mag HR 545/6, 3.88V; colors also combined. 546 1D: Binary with HR 545, orbital period 5000 - 10000y? Component C, 9.6v at 221". Combined colors for HR 545-6; combined 546 2D: mag 3.88V. 556 1D: ADS 1534B not compound multiple with HR 557, component A. 557 1D: ADS 1534AP, compound multiple, 11.9v at 18". 560 1D: 6.76 F7, 6.76 G0, 170.3y, a = 1.05". Alternate orbit 158.4y, a = 1.00". Masses 1.34 and 1.29 solar. Combined mag and 560 2D: colors. 566 1D: compound multiple. 567 1D: Optical. 569 1D: ADS 1563B, 7.40V, +0.58(B-V), +0.07(U-B), dG1, compound multiple; vsini =<25k/s. 575 1D: AB 4.71 A4V, 6.41 F2V, 60.44y, a = 0.653". Perturbation periods of 26 or 39y suspected. C, 13.6v, 24" compound multiple; D, 13.0v 48" 575 2D: optical. Additional unseen companion suspected. 577 1D: ADS 1582AB, 8.5, 11.0v, separation 2.3" at 188" from the bright component D. C, 9.2v at 31" from A. 592 1D: ADS 1625AB, compound multiple. 595 1D: Binary with HR 596, q.v. 596 1D: 4.18 A2p, 5.21 Am, 933.05y, a = 4.0". Colors for combined light. Combined mag 3.82V. 603 1D: compound multiple with HR 604. 604 1D: BC 5.5 B8V, 6.3 A0V, 61.1y, a = 0.296". ADS 1630BC compound multiple with HR 603. Component D, 15v at 28". Possibly also compound multiple with 604 2D: BD+41d408 at 53'. 605 1D: AB 5.90 F8IV, 7.27 F9V, 288.0y, a = 1.256"; or 309.03y, a = 1.34". Other published periods have ranged from 247 to 605 2D: 925y. Combined mag, colors. 609 1D: Suspected occultation double. 610 1D: ADS 1634AB compound multiple. B, G5V; C at 83" optical. 627 1D: B, mag diff 6.9v at 5.6". 628 1D: compound multiple with HR 629. 629 1D: compound multiple with HR 628. 640 1D: Resolved by speckle interferometry 1983.93, separation 0.07". 642 1D: Binary. Companion F6V. 647 1D: 6.6 F3V, 7.08 F6V, 144.7y, a = 0.908". Combined mag, colors. 649 1D: Suspected occultation double, separation 0.012". 650 1D: AB binary; B, dG4; C, 11.5v at 173". 657 1D: 19.35y, a 0.17" or 18.614y, e 0.616, a 0.158", 10.82AU, i 130.1d. Alternate orbit 19.35y, a = 0.17". Speckle 657 2D: interferometric separation 0.17", 1983.93. 660 1D: Probably optical. 674 1D: Companion G2V? 681 1D: AP var. M7IIIe, var. dBe, 400y, a = 0.85". The faint companion was first predicted in 1920 by Joy on the basis of a 681 2D: slightly displaced blue secondary spectrum. First seen by Aitken in 1923. Visible only when Mira is faint. Light 681 3D: variations on scale of hours superimposed by variations of 10-15 min. and rare flares of 2 min. duration. Components B, 681 4D: 13v at 73" and C, optical. 685 1D: Fixed. 707 1D: AB 4.64 A3Vp, 6.89 F5, 840y, a = 2.27". A* 4.64 A5p, 52.4y, a = 0.113". Unresolved by speckle interferometry. 707 2D: ABxC 4.51 A5p, 8.40 G7V, probably physical, 6.706" periastron for parabolic orbit. vsini of C =<50k/s. 710 1D: AB compound multiple. 716 1D: Companion A3IV. 728 1D: ADS 1904AB binary; B, 11v. 729 1D: Suspected occultation double. 746 1D: Companions optical. 749 1D: Companion 7.83V, +0.20(B-V), +0.15(U-B), A7V or A3Vm; vsini 167k/s. Probably optical. 750 1D: Companion, A5, optical. 752 1D: Optical. 753 1D: Visual companion 11.7v dM6 at 165", compound multiple. A* 5.84 K3V, 60y, a = 0.257".. Mass of invisible companion 0.12 solar. 753 2D: Companion at 2" probably about 5v fainter. Unresolved by speckle interferometry. 754 1D: Binary. Companion 9.08V, +0.56(B-V), +0.19(U-B), F7V. 763 1D: Separation 0.021". 764 1D: compound multiple with HR 765. HR 764 formerly misidentified as the SB = HR 765. Data for HR 764 and 765 have frequently been 764 2D: interchanged. 765 1D: compound multiple with HR 764. 768 1D: B 12v, 8" optical; AC compound multiple; D, mag diff 5.97v at 40" from A. 781 1D: 5.6 F6V, 5.6 F6V, 2.67y, a = 0.108". Combined mag, colors. 782 1D: compound multiple. 787 1D: Optical. 788 1D: 0.906y, a = 0.057". 792 1D: AB fixed. 793 1D: AB 6.2, 12.2v, 19" about 6y. Occultations indicate A is triple system, 7.0v A1, at 0.06", and 8.0v at 0.2". Aa 793 2D: resolved by speckle interferometry, separation 0.045" 1981.68, 0.040" 1981.69. 799 1D: AB 4.13 F7V, 9.87 M1V, 2720y, a = 22.289". C probably optical. 803 1D: AB compound multiple. 804 1D: AB binary, combined mag, colors. compound multiple with BD+2d418, 10.2v M6 at 840". 813 1D: Occultation binary. Combined mag, color. 814 1D: Binary. Combined mag, color. 820 1D: AB binary. 823 1D: 7.1 F5, 7.1 F8, 28.5y, a = 0.279". 828 1D: Suspected occultation double, 6.8, 6.8v, separation 0.2". 834 1D: Component B, B9V, compound multiple, vsini 149k/s. 836 1D: AB compound multiple. B 8.8v, A0Vp at 3.2", RV -21k/s, probably optical; C 10.72V, +0.60(B-V), +0.60(U-B), F8V at 25". A is close SB 836 2D: pair with computed separation 0.00004". 838 1D: Optical system. 844 1D: AB compound multiple, B, 13v at 12"; C, optical. 846 1D: AB, 7.2, 9.2v separation 0.2" possibly optical; AC binary. 848 1D: Primary G6III, secondary G4V. 854 1D: A* 4.06 G4III+A4V, 4.150y, a = 0.050". Speckle interferometric separation 0.080" 1981.67. Circumstellar material surrounding 854 2D: the pair? Visual companions 10.7v at 51" possibly physical; 11.8v at 4" possibly optical. 855 1D: AB 5.9 F4V, 6.5 F6V, 31.37y, a = 0.258". Nearly equal components, 3.7, 4.3 solar. Component C, 9.7v at 14", compound multiple? 865 1D: Component B, 15v, possibly spurious. 881 1D: Binary. Companion F7IV. 887 1D: Binary with HR 888. mag and colors for combined light. 888 1D: A, 5.25H; B = HR 887, 5.55H; C, 12.7v at 146". 890 1D: compound multiple with HR 891. 891 1D: compound multiple with HR 890. 897 1D: Binary with HR 898. Uncertain which component var. Combined mag HR 897/8, 2.91V; combined colors, +0.125(B-V), 897 2D: +0.13(U-B). 898 1D: Binary with HR 897. 906 1D: ADS 2348B probably optical. 915 1D: SKYLAB observations indicate cool star with hot companion. Components Aa, 14.65y, a = 0.159". Physical nature of B, 915 1D: 11m at 57", uncertain. 917 1D: compound multiple. 927 1D: Binary with HR 928. Colors for combined light. AB, 227y, a = 0.470". Triple system with C, 10.8v at 5". 928 1D: See HR 927. 936 1D: A* var. B8V, 1.858y, a = 0.011" or 1.862y, a = 0.104". Apparent apsidal period 28.4y or 32y. Resolved by speckle 936 2D: interferometry: separation 0.086", 2-3v fainter than primary. This may be Algol C. Four visual companions all optical: 936 3D: B, 12.7v at 59"; C, 12.5 at 67"; D, 10.5 at 82"; BC separation 15"; E, 12.5v at 11" from D. 938 1D: Separation 0.03". 939 1D: Interferometric double, 6.3, 6.3v. Combined mag and color. 941 1D: Companion optical. 948 1D: Suspected occultation double. 952 1D: Suspected occultation double. 955 1D: Optical. 961 1D: AB compound multiple. C, 13.1v at 11" optical. 962 1D: compound multiple. 963 1D: 3.9 F8IV, 6.5 G7V, 314y, a = 4.367". Combined mag, colors. 967 1D: AB 6.8 A2V, 7.3 A4V, 330y, a = 0.386". Combined mag, colors. 968 1D: AB 6.6 G2III, 6.9 A7IV, 44.82y, a = 0.443". Combined mag, colors. Component C 9.5v at 3" physical. 979 1D: Component B, 8.0 A7m. compound multiple. 981 1D: Secondary 8.06V. 985 1D: Probably optical. 992 1D: 5.6 K1IV, 7.5 G8V, 351.94y, a = 1.077", or 217.20y, a = 0.974". Combined mag, colors. Double discovered by Alvan 992 2D: Clark. compound multiple with BD-1d474, 9.5v at 11'. 996 1D: C, 11.9v at 251". 997 1D: Binary. 1003 1D: AB binary, B is K0V. C, 11v at 40" optical. 1005 1D: Suspected of being double or triple by Tebbutt in 1893. Components 5.4, 7.9v, separation 0.15", and 8.4v at 0.67". 1006 1D: compound multiple with HR 1010. 1010 1D: compound multiple with HR 1006. 1019 1D: AB compound multiple. 1024 1D: Binary. 1033 1D: AB 6.8 B9V, 7.8 A1V, 259.90y, a = 0.370". Combined mag, colors. 1036 1D: 7.2, 7.2, separation 0.1" listed by D. W. Dunham. Probably not occultation double. 1044 1D: 550y. 1046 1D: AB compound multiple. 1048 1D: ADS 2552A is close binary, 6.3, 7.7v, separation 0.010". AB binary; C, 13v at 148". 1065 1D: B compound multiple, A3V, vsini 100k/s, both components. 1068 1D: AB compound multiple. B, spectral class F2V. Component C, 10.5v at 164". 1077 1D: AB 6.8 F3V, 7.6 F9V, 287.7y, a = 1.245". Combined mag, colors. Mass AB, 2.2 solar. C, 10.3v at 92" optical. 1084 1D: Astrometric binary, 25y. Unresolved by speckle interferometry. 1086 1D: AB 6.6 A3V, 6.7 A3V, 568.22y, a = 0.650" or 600y, a = 0.719". Combined mag, colors. C, 9.9v at 22" physical. 1093 1D: 6.8 F5V, 7.1 F6V, 19.4y, a = 0.225". Combined mag, color. 1099 1D: 5.88 dG9, 8.83, B-V +0.99, U-B +0.79, K6V, 2101y, a = 8.023". Close radio binary. 1101 1D: compound multiple? Position angles disagree by about 40d. 1110 1D: ADS 2661A, occultation double?, 7.1, 7.1v, separation 0.3". Component B, 11.8v at 36" optical. 1112 1D: Component D, 8.73V, +0.10(B-V), -0.22(U-B), B8III. 1129 1D: 5y? Separation 0.052". vsini of secondary =<50k/s. 1131 1D: Binary. Combined mag, colors. Rotational velocity B, 150:k/s. Unresolved by speckle interferometry 1982.16. 1140 1D: Suspected occultation binary, separation 0.0062". Unresolved by speckle interferometry 1981.69. 1141 1D: compound multiple. 1142 1D: Separation 0.062". Occultation of 1972 Mar. 19 indicated mag diff 3.4, separation 0.010". 1145 1D: Primary is SB, 4.6, 6.1v, separation 0.012". Visual pair 4.4, 8.1v, separation 69". 1149 1D: Separation 0.003". Unresolved by speckle interferometry 1981.69. Duplicity questioned. 1152 1D: Suspected occultation double. 1153 1D: B possibly optical. 1156 1D: Suspected double probably single star. 1157 1D: compound multiple. Primary K1IIIab, secondary G3IV. 1160 1D: Probably optical. 1163 1D: Binary. 1165 1D: Component A is occultation double, separation 0.031". B, C, D, 8.1 A0V, 8.1 Am(A5/F0/F2) and 8.7v F2V at 117" to 190". 1165 2D: Possibly second occultation companion at 0.001", unresolved by speckle interferometry. vsini of B 155k/s. Numerous 1165 3D: photometric determinations yield 6.3 for B component. The HD gives 8.1 for 23629 and the IDS indicates 8.1. Burnham, 1165 4D: Double Stars, gave 7.0 vis. 1171 1D: 11.1v companion at 5" noted by Innes not confirmed. 1174 1D: Binary. 1178 1D: Component A SB, 4.1, 5.6, separation 0.006" and 0.019". B, 6.8v at 0.4". 1188 1D: 5.81 A3V, 6.21 A5V, 62.28y, a = 0.430". Resolved by speckle interferometry 1983.93, separation 0.66". 1189 1D: Binary with HR 1190. 1190 1D: Binary with HR 1189. 1193 1D: Suspected occultation double. 1202 1D: Companion F4V, optical. 1203 1D: AB compound multiple, B 9.16V B8IV; C, 9.12V at 33" optical; D, 10.35V, +0.713(B-V), +0.20(U-B), at 92" optical; E, 9.90V, A2V, 1203 2D: +0.33(B-V), +0.17(U-B), at 120" physical. 1205 1D: Companion A0, compound multiple. 1209 1D: compound multiple? Component A possibly optical counterpart or companion of X-ray source 4U0352+30. Possibly a triple system with a 1209 2D: neutron star moving around the optical primary in 22.4 hrs., and either apsidal period 581d or close double moving 1209 3D: around a distant component in 581d. Rotational velocity of primary, vsini 306k/s. Component ADS 2859B is normal M1III, 1209 4D: not T Tau type as once assumed. 1210 1D: AB compound multiple. Component C, 11.4v at 101" optical. P, 12.5v at 279". 1211 1D: Binary with HR 1212. C, 10v at 165". 1212 1D: Binary with HR 1211. 1219 1D: AB combined mag and color. C, 12.7v at 23". 1220 1D: AB compound multiple. B, 7.39V, -0.03(B-V), -0.52(U-B), B9.5V, vsini 300:k/s. 1230 1D: 5.54 gG8, 6.29 A7, 415.1y, a = 1.00". 1243 1D: Component B, F8V, optical. Third component mag diff 6.13v, at 100". 1252 1D: A is occultation binary, separation 0.033", unresolved by speckle interferometry 1981.68. Spectrum binary; vsini of 1252 2D: early-type component 160k/s. AB, mag diff 6.5v, separation 25.5". 1260 1D: AB fixed. Some confusion in literature as to which component is A, which B. SZ CAM is Np = B, 6.94V, +0.41(B-V), 1260 2D: -0.53(U-B), O9.5V, vsini 160:k/s. Colors of both components have been described as "yellowish" even though both have 1260 3D: B-type spectra. Component Q, 10.39V, +0.58(B-V), -0.26(U-B). 1278 1D: compound multiple with GC 4949 at 12' = ADS 2995, a triple system 7.3 dK2, 9.0 separation 1"; C at 234". 1279 1D: compound multiple. B is dG8. 1280 1D: Primary of ADS 3006 is occultation binary, separation 0.05". Visual companion, 9.3v at 4.4", compound multiple. 1303 1D: A* 4.13 G0Ib, 0.778y, a = 0.019". AB compound multiple; B, 11.8v at 15". C , 10.25V, +0.47(B-V), +0.06(U-B), B8. 1308 1D: B, 13.6v at 8"; C, optical. 1309 1D: 6.0 F2V, 6.1 F3V, 7.18y, a = 0.135". Resolved by speckle interferometry 1983.93, separation 0.09". 1311 1D: AB binary; C, 12v at 32" optical. 1318 1D: AB binary, B is G2V. 1321 1D: compound multiple with HR 1322. 1322 1D: compound multiple with HR 1321. 1325 1D: BC 9.51 A2, 11.18 M4Ve, 252.1y, a = 6.943". Component B is white dwarf. Component A, compound multiple. 1329 1D: Duplicity questioned. 1331 1D: Visual primary is speckle-interferometric double, separation 0.076". Visual companion 10.7v at 166". 1339 1D: compound multiple with HR 1341. 1340 1D: Optical. 1341 1D: compound multiple with 1339. 1347 1D: C, 11.8v at 49". 1348 1D: Optical. 1349 1D: Astrometric binary unresolved by speckle interferometry. 1351 1D: Binary. 1357 1D: Binary. Combined mag, colors. 1359 1D: Secondary F7V, vsini 90k/s. 1364 1D: compound multiple. Companion G0V. 1366 1D: B, 13.0v at 36" optical. 1369 1D: compound multiple. Component A suspected occultation double; component B, G2V, strong lithium. 1374 1D: AB 6.6 F1V, 6.9 F3V, 76.92y, a = 0.500". Combined mag, color. Component C, 12v at 37" optical; D, 8.25V, +0.57(B-V), 1374 2D: +0.04(U-B), G0 at 45" compound multiple. 1378 1D: AB compound multiple. B is A0. Component A suspected occultation double. 1381 1D: 5.8 A3V, 5.9 A4V, 51.6y, a = 0.18", or 55.40y, a = 0.20". 1382 1D: Optical. 1387 1D: Kappa1 Tau is occultation double. Together with Kappa2 = HR 1388 they form a multiple system of at least 1387 2D: 6 components. 1388 1D: See HR 1387. 1389 1D: AB binary; C, 11v at 77" compound multiple. 1391 1D: AP 7.2 dF5, 7.2, 13.15y, a = 0.133"; occultation binary. Component B, 12.4v at 126". Speckle interferometric separation of 1391 2D: AP 0.093" 1980.94; 0.094" 1983.93. 1392 1D: The visual primary is SB, 4.6, 6.5v, separation 0.020". Component B, 12.5v at 110". 1394 1D: Visual primary is occultation double. Component B, 11.1 at 137". 1398 1D: AB optical? C, 11v at 4" from B. 1403 1D: Primary is SB, 6.2, 7.0v, separation 0.01". Visual secondary is 10.5v at 161", probably optical. 1405 1D: Binary. Components G1V and G5V. 1406 1D: AB binary; C, 11.32V at 121" optical. Fourth component 13.3v at 17" from C. 1407 1D: Separation 0.024". 1410 1D: 6.8 A2, 7.0, 175.7y, a = 1.250". 1411 1D: compound multiple with HR 1412. Not clear if there are one or two occultation companions: mag diff 3.8v, separation 0.082", another 1411 2D: possible mag diff 8v, separation 0.2". 1412 1D: compound multiple with HR 1411. Close occultation binary, 3.5, 5.8v, separation 0.005". 1417 1D: AB binary. B, 6.94V, +0.16(B-V), -0.70(U-B), B1IV? vsini =<25k/s. 1419 1D: Suspected of being double; probably single. 1422 1D: 5.7 F0V, 7.98 G2V, 189.5y, a = 1.01" (alternates 180.0y, a = 1.00"; 170y, a = 1.029"). Combined mass 2.82 solar. 1422 2D: Speckle interferometric separation 1.300" (1980.94). 1424 1D: compound multiple. 1427 1D: Component A of visual pair is occultation double 5.6, 5.6v, separation 0.02"; component B, 6.7v at 250". 1442 1D: Binary. No change after 113y. 1449 1D: compound multiple. 1454 1D: A* 4.27 G8II+B, 28.67y, a = 0.054"(not confirmed). 1455 1D: Visual duplicity questioned. Unresolved by speckle interferometry 1983.93. 1457 1D: AB binary. B is 13.5v, dM2 at 31". CD, 122" from A is 11.2, 13.6v separation 2" also binary but independent of AB. 1458 1D: compound multiple. Companion 7.84V, +0.54(B-V), +0.04(U-B), F8V. vsini =<25k/s. 1460 1D: compound multiple. Companion A7V. 1462 1D: Component C optical. 1465 1D: 3.8 A0IIIp, 4.3 B9IV, 13.00y, a = 0.212". Combined mag, colors. Companion 10v at 78" optical. 1466 1D: AB 5.8 F0V, 7.4 F9V, 26.25y, a = 0.18" or 26.797y, a = 0.157". ABxC 5.6, 7.3, 425.0y, a = 1.38". Component D, 13.2v at 1466 2D: at 24" optical. Spectral classes component A, A9V; B, F8V; C, F8V. 1470 1D: Occultation indicated mag diff 0.37v, separation 2.117" (half the visual separation) and PA 78d in contrast to visual 194d. 1474 1D: IDS gives AB, 5.3, 11.8v separation 30". Optical. Component C by Wallenquist. 1478 1D: Binary with HR 1479 at 431" and with fainter SB companion, 7.4v at 0.0015". 1479 1D: Binary with HR 1478. 1486 1D: 280.0y, e 0.56, a 0.45", i 51.9d, mag diff 0.0. 1490 1D: AB, compound multiple. Third component by Wallenquist, mag diff 6.42, separation 90". 1492 1D: B is 11.9 at 34". Uncertain which of components B,C is the brighter: discordant magnitudes. 1496 1D: Seen as double only in 1877 and 1923. 1497 1D: AB compound multiple, 4.3, 8.9v separation 0.1", 28y? C, 7.3A1V at 63" vsini 100k/s, physical. D. W. Dunham gives 4.9, 5.6v separation 0.1" and 1497 2D: 4.9, 6.4 separation 0.0005". 1502 1D: compound multiple. 1504 1D: 7.2 G5V, 7.3 G6V, 552.30y, a = 3.164". Combined mag, colors. Both components also classified G3V. 1505 1D: compound multiple with HR 1506. 1506 1D: compound multiple with HR 1505. 1543 1D: Visual companion probably optical. 1555 1D: compound multiple. 1557 1D: Companion optical. 1563 1D: compound multiple with HR 1564. B-V for combined light. 1564 1D: compound multiple with HR 1563. 1568 1D: AB 4.5, 7.8, 284.0y, a = 0.78". C, 11v at 26" compound multiple, possibly physical. 1580 1D: Optical group. 1589 1D: 136.0y, e 0.32, a 0.425", i 88d, mag diff 1.0. 1590 1D: Component A suspected occultation double. Two visual companions. 1592 1D: Binary. 1593 1D: compound multiple. 1600 1D: AB probably optical. B, 8.0v B9; C, 9.8v at 54"; D, by Wallenquist, mag diff 7.1 at 90". 1604 1D: AB 5.94 F3V, 7.28 F9V, 54.62y, a = 0.507". Component C, 8v at 54", optical. 1605 1D: ADS 3605A. A* 2.98 var. A8Iap. Five visual and one astrometric components. AB visual binary, B, 14v at 29"; C, 1605 2D: 11.26V, +1.83(B-V), +1.31(U-B), at 43"; D, 12.0v at 46". 1609 1D: Fixed with HR 1610. 1610 1D: Fixed with HR 1609. Colors for combined light. 1619 1D: BC binary 7.7, 10.7v separation 0.5"; AxBC binary, B = GC 6148 A1IV?, vsini 53:k/s; D, 9.5 at 130". 1620 1D: Probable double, 5.4, 5.4v, separation 0.4". 1622 1D: Optical pair with HR 1623. 1623 1D: Optical pair with HR 1622; C, 10.8v at 173" from B; D, 13.3 at 16" from B. 1637 1D: A,B,C, compound multiple; D, optical; E, 12.3v at 132" from A. 1656 1D: 5.6 G4V, 5.6 G4V, 1.19y, a = 0.18"; or 2.38y, a = 0.10"; or 5.8y, a = 0.11". Combined mag, colors. Separation 0.099". 1656 2D: Unresolved by speckle interferometry 1983.93. 1659 1D: A is SB, 5.7, 7.7v separation 0.0004". Visual companions 12.0 at 13", 8.6 at 35". 1660 1D: Primary of visual pair is possible occultation double, 6.8, 6.8v, separation 0.3"; secondary, 9.1v at 111.5" is BD +21d764. 1664 1D: 5.78 Am, 6.62 Am, 198.9y, a = 1.04". Mean mass 1.7 solar. Combined mag, colors. compound multiple with ADS 3712 = GC6270, 9.8, 8 K2 1664 2D: separation 3" at 348". 1669 1D: AB, compound multiple. 1670 1D: BC 8.6 dG7, 9.1, 32.1y, a = 0.217". compound multiple with component A. 1671 1D: ADS 3722B, K0III-IV, RV +72k/s. 1676 1D: Suspected visual double probably single: unresolved by speckle interferometry. 1686 1D: B, dF5, optical. C observed only once. 1690 1D: Binary. 1696 1D: compound multiple companion G8Ve, strong lithium. 1698 1D: AB fixed. B, 8.4v, F7V at 7"; C, 11.8 at 182". 1701 1D: AB 6.9 A4V, 7.1 A6V, 312y, a = 0.383". Combined mag, colors. C, 13v at 7", may be physical. 1705 1D: compound multiple. Combined mag, colors. Companion B9V, optical? 1706 1D: AC binary. B, 11v F4V at 13" optical. 1707 1D: Binary. Component B, 9.50V, +0.47(B-V), +0.09(U-B), F4IV. 1708 1D: AP 0.6 G5III, 1.1 G0III, separation 0.04", 0.285y, a = 0.054", masses 2.67 and 2.55 solar. Combined mag, colors. Capella is 1708 2D: first star for which an orbit was determined from interferometer measures, by Anderson at Mt. Wilson in 1920. Speckle 1708 3D: separation 0.040" 1981.24 and 1981.68; 0.055" 1982.16. compound multiple with component H, a close binary, 10.0 dM1, 13.7 dM5 separation 2" at 1708 4D: 723" from A, probably physical with A. Other components all faint and distant from A. 1712 1D: Component B doubtful, possibly the nebula. C 10.7V at 30". 1713 1D: AxBC, compound multiple. BC binary, 7.6 B8II, 7.6v separation 0.12". D, 15.4v at 44". BC also classified B5V+B5V. For B, vsini =<39k/s. 1726 1D: compound multiple. 1728 1D: Possible compound multiple with HR 1732. 1729 1D: B, 13.4v at 29". C, 12.1v at 42" and D, optical. 1732 1D: Possible compound multiple with HR 1728. 1736 1D: Fixed. Companion spectral class A. 1741 1D: compound multiple. Companion 9.64V, +0.76(B-V), +0.19(U-B), G1IV-V. 1747 1D: Component B optical. 1753 1D: Fixed with HR 1754. 1754 1D: Fixed with HR 1753. 1759 1D: compound multiple. 1764 1D: Component B optical. 1770 1D: Fixed. Secondary 7.17V, -0.12(B-V), -0.63(U-B), B5Vn, B8nnp or B3V, RV -58k/s, vsini 350k/s, optical. 1771 1D: AB binary; C, 9.2v K0 at 61" optical. 1773 1D: AB fixed. 1778 1D: Companion A5IV, vsini 124k/s. 1779 1D: compound multiple. Companion F6V. 1780 1D: Companion optical. 1782 1D: BC 7.8 F8V, 7.9 F8V, 48.0y, a = 0.34". AxBC physical. 1788 1D: ADS 4002A is SB triple system, abc with periods 9.2y and 7.989d. Speckle interferometry gives 9.219y, a = 0.036" for 1788 2D: for ab x c. Visual components AB, binary, 3.8, 4.8v, separation 1.650"; C, 9.4v at 115". The total mass of the quintuple 1788 3D: system exceeds 50 solar masses, the most massive component being about 17 solar masses. 1800 1D: 359.1y, e 0.19, a 0.28", i 50.9d, mag diff 0.3. 1808 1D: ADS 4038A is occultation double. B and C are 10.1v at 305" and 11.8v at 343". 1810 1D: ADS 4048A is occultation double, equal magnitudes, discovered during occultation of Feb. 26, 1901 by Innes. The three 1810 2D: visual companions: B, 12.39V at 38"; C, 11.55V at 59"; and D, 11.6 at 74" may all be compound multiple with A; however, B and C may 1810 3D: possibly be optical. 1811 1D: AB about 6300y. B, 10.3V, vsini 96k/s. C, 12.3v at 83", optical. 1812 1D: Companion F5. 1818 1D: AB, 6.9, 7.2v separation 0.2" binary. C, 6.8v A0. Combined mag and colors of AB. 1821 1D: AB binary, B is A0V; colors for combined light. C, 11.5v at 141". 1825 1D: Companion 7.62V, +0.94(B-V), +0.69(U-B), G8III. 1829 1D: AB binary; C, 12.0v at 64"; D, 10.5 at 206"; E, 10.5 at 241". 1834 1D: compound multiple. Companion 9.70V, +0.71(B-V), +0.15(U-B), F7V. 1839 1D: 4.49 B5IV, 5.82 B7V, 586y, a = 1.293". Combined mag and colors. 1842 1D: AB fixed. Combined mag, colors. 1847 1D: Companion is B7IV, vsini 291k/s, optical. 1851 1D: Binary with HR 1852, q.v. 1852 1D: Binary with C = HR 1851. Component B, 14.0v at 33". 1857 1D: compound multiple. 1861 1D: compound multiple. 1863 1D: All components compound multiple? CD binary, 8.9v A0V, 9.7v separation 0.8" at 30" from A, physical. 1872 1D: Suspected visual double probably single. Unresolved by speckle interferometry. 1873 1D: Companion has K-type spectrum. 1879 1D: A,B,C fixed. B is HR 1880. Colors for combined light. Blended mag, 3.39V. C is 11.2v at 29", optical; D, 11.2 1879 2D: at 78". 1880 1D: See HR 1879. 1883 1D: compound multiple. 1886 1D: Fixed with HR 1887. 1887 1D: Fixed with HR 1886. 1892 1D: Binary. COPERNICUS spectra and IR photometry yielded no evidence on the companion. 1893 1D: ADS 4186AC fixed at 13". C = HR 1895. ADS 4186 and 4188 together appear to form one complex multiple system whose 1893 2D: brightest components are ADS 4186C = HR 1895 and ADS 4188A = HR 1897. These two components are double star STF 17 which 1893 3D: IDS lists as part of ADS 4188. Thus, the 9 components of ADS 4186 and the 4 of ADS 4188 form one system of at least 12 1893 4D: components. Those of ADS 4186 range from mag 5.4 to 16.7v, all within 22" of A. ADS 4188 has two other 1893 5D: companions in addition to HR 1895: B, 6.5v at 53" and C, 7.6v at 129" from HR 1897. 1894 1D: Fixed with HR 1895 at 17". See HR 1893. 1895 1D: See HR 1893. Fixed with HR 1896 at 13". 1896 1D: See HR 1893, 1895. 1897 1D: ADS 4188AB fixed at 52". B is 6.38V, -0.05(B-V), -0.93(U-B), B0.5V; vsini 17k/s. See HR 1893. 1898 1D: compound multiple. 1899 1D: AB fixed. B is B7IV; vsini 50k/s. 1902 1D: AB binary, both components B8IV. Combined magnitude and colors. 1911 1D: compound multiple. Combined mag, colors. 1912 1D: BC, 10.0, 12.2v, separation 11.3" at 55" from A, optical. 1914 1D: AB 6.0 G5III, 6.3 A2V, 53.2y, a = 0.135". Combined, mag, colors. C, 8.57V, +0.28(B-V), +0.09(U-B), F0V at 12", 1914 2D: physical; D, 11.5v at 33". Resolved by speckle interferometry 1983.93, separation 0.12". 1921 1D: Suspected occultation double. 1925 1D: Component B, 9.9v M1 at 99", is BD +53d935, compound multiple. Component D is F5. Other companions 12.4 and 12.8v. 1928 1D: Triple system: SB and third component 8.5v at 0.32". 1931 1D: AB 4.1 O9.5V, 5.1 B0.5V, 170y, a = 0.247". Combined mag and colors. C, 8.79V, A2V at 11" may be physical; D, 6.62V, 1931 2D: -0.20(B-V), B2V, at 13" and E = HR 1932, at 42" compound multiple with A. A multiple system similar to trapezium. ADS 4241 possibly 1931 3D: the most massive visual binary known, 35 solar masses. 1932 1D: See HR 1931. Speculation that component E may be captured star older than the other components. 1944 1D: Except B all companions at distances 41" to 129" from A, and 5 of them mag 8 to 10v. 1945 1D: compound multiple, B is 7.18V, -0.04(B-V), -0.14(U-B), B9.5V, vsini 120k/s. 1946 1D: 5.3 B3IV, 5.9 B3V, 95.36y, a = 0.357". Equal components. Combined mag, colors. 1948 1D: AB 1.88 O9.5Ib, 4.02 B2III, 1508.6y, a = 2.728". Colors for combined light. Blended magnitude 1.76V, 18 and 6 solar 1948 2D: masses. B is HR 1949. C is 9v at 58", possibly physical. 1949 1D: See HR 1948. 1959 1D: compound multiple. 1967 1D: AB 6.5 F5V, 6.9 F6V, 20.10y, a = 0.201". 1978 1D: BC, 9.5, 13.0v, separation 1.3" at 17" from A, optical. 1982 1D: compound multiple with HR 1983. C, 11.0v at 45". 1983 1D: compound multiple with HR 1982. 1986 1D: compound multiple. Companion 8.97V, +0.55(B-V), +0.08(U-B), G0IV. 1987 1D: Optical. 1992 1D: Third component mag diff 6.29V, 80" from A. 1993 1D: Component B optical. 1997 1D: AB binary. C, 7.2v A0 at 75", compound multiple. 1999 1D: Binary. Companion F0. 2012 1D: Companion optical. 2013 1D: Third component, visual, 11.6v at 15". Reality of the occultation binary, separation 0.01", has been questioned. 2021 1D: compound multiple. Combined mag, color. 2047 1D: Possibly triple system. Magnitudes of separate components unknown. 2047 2D: A*, 14.25y, a = 0.095". Probably low-mass companion. 2050 1D: Optical. 2053 1D: AB optical. C, 12v at 45". 2061 1D: Components B-E all 11 to 14.5v at separation 40" to 174" from A. D 13.5 at 77", optical. Speckle interferometric observations 2061 2D: in 1983 November (Karovska et al. 1986, ApJ, 308, 360) show A to be a triple system with closer companion at 0.06" 2061 3D: (mag diff 3.4 at H alpha) and more distant companion at 0.51" (mag diff 4.6 at H alpha). 2067 1D: All companions optical. 2088 1D: AB binary. C, 14.1v at 13". 2095 1D: AB binary , combined mag, colors. B is 7.2v G2V. C, 11v at 49" optical. 2096 1D: AB probably binary. B, 11v at 2". Component C, K0III, optical. 2099 1D: 126.0y, e 0.56, a 0.265", i 75.4d, mag diff 1.4. 2111 1D: Optical. 2114 1D: C, 13.0v at 20" from B. 2116 1D: Suspected occultation double. 2123 1D: BC, 9.0, 10.0v, separation 0.6", compound multiple with A. 2124 1D: AB 4.4 A2V, 6.0 F3V, 17.5d, a = 0.276"; ABxP, 18.25y, a = 0.089". Magnitude and colors for combined light. A is alpha 2124 2D: CVn var., SB1, 4.45d; B is SB2, 4.78d. Component C, 14v at 18" probably optical. 2128 1D: Binary. 2130 1D: Triple system, SB, separation 0.0014". Third component found by occulation, 6.5v at 0.060". 2134 1D: AB 4.7 G6III, 5.1 G8III, 13.17y, a = 0.19". Combined mag, colors. Component A is SB, 4.9, 6.9v, separation 0.0013". 2134 2D: Speckle interferometric separation 0.128" 1982.17, 0.086" 1983.93. Component C, 13.0v at 101". 2135 1D: Occultation binary, separation 0.02". 2137 1D: Confusion as to whether B or C is the brighter, B at 18", C at 84" from A. 2140 1D: C is 15v at 21". 2146 1D: compound multiple. Companion 10.72V, +0.90(B-V), +0.25(U-B), F7V. 2149 1D: Separation 0.097". 2157 1D: compound multiple with HR 2158. 2158 1D: Binary 5.9, 9.4v separation 5", compound multiple with HR 2157. 2162 1D: 7.2 G5, 7.4, 463.5y, a = 2.94". 2173 1D: AB binary, combined mag, colors. C 14.4v at 18". 2174 1D: AB compound multiple. B is 6.94V, +0.04(B-V), -0.02(U-B), A0V, vsini 120k/s. Component C, 8.9v at 118". HD erroneously assigned the 2174 2D: preceding number, HD 42092, to the fainter following component of ADS 4749. Consequently the data for the two primary 2174 3D: components are sometimes interchanged. vsini for component A is 250k/s. 2175 1D: Binary with HR 2176. 2176 1D: Binary with HR 2175. 2181 1D: Separation 0.099". 2186 1D: 6.4 F5V, 6.5 F5V, 18.2y, a = 0.203". 2190 1D: IUE observations of uv continuum suggest an early-type companion, B9 or A1III-IV. 2214 1D: Binary. Occultation indicates separation 0.27". 2216 1D: AB, 473.7y, a = 1.08". B is 8.8v at 1.4". A is suspected occultation double, 3.4, 5.4v, separation 0.03". Masses A, 12.4; 2216 2D: B, 5.5 solar. The three components are surrounded by a gaseous envelope. 2217 1D: AB compound multiple. B is dF0; C 12.3v at 202" optical. D, 11.5v at 120" from A. 2220 1D: B and C optical. Aitken and Wallenquist disagree on magnitude difference: Aitken AB 6.0, AC 5.3, AD 4.8; Wallenquist 2220 2D: 5.6, 7.6, 7.3, respectively. Separation 25", 76" and 86", respectively. 2222 1D: Companion, RV -2k/s, optical. 2230 1D: Suspected occultation double, 6.9, 6.9, separation 0.1". 2236 1D: 6.8 F5, 7.0, 28.1y, a = 0.165". 2237 1D: 132.7y, e 0.52, a 0.24", i 55.7d, mag diff 0.3. 2247 1D: AP 6.1 A2IV, 9.0y, a = 0.109". B and C both 8.4v at 63" and 117", both optical. D, 11v at 5" from C. AP resolved 2247 2D: by speckle interferometry 1983.93, separation 0.06". Aa resolved by speckle interferometry 1983.93, but unresolved 1983.94. 2253 1D: AB binary. B, 13.0v at 2". C, optical? 13.28V, +0.56(B-V), +0.34(U-B). 2254 1D: Optical. 2257 1D: AB binary. C, 12.9v at 26". D, 11.0 at 100". AE magnitude difference 6.24V, separation 70". 2274 1D: AB optical. B is F8. 2280 1D: 6.8 A3V, 7.4 A6V, 120y, a = 0.448". 2284 1D: AB compound multiple. C at 56", optical? 2285 1D: compound multiple. 2291 1D: Possibly faint visual companion at 50". 2293 1D: B, 10v at 31" optical; C, G8III probably optical. D, 12v at 80". 2298 1D: Binary with HR 2299. Combined light 4.30V, +0.21(B-V). Component C, 12.2v at 93". 2299 1D: See HR 2298. 2304 1D: Speckle interferometric double, 6.5, 6.9v, separation 0.055". 2309 1D: compound multiple companion F0V; however, the companion is optical. 2310 1D: IUE observations suggest an early-type companion, about A0. 2328 1D: Fixed separation 2339 1D: Separation 0.003". 2343 1D: AA' probably combined light and color. This may be the SB pair, 4.3, 6.0v, separation 0.2". B, 8.5V A1V at 113", 2343 2D: vsini 141k/s, is binary with C, 8.9v, separation 0.2". Component P, 15.1V at 24" optical. Other components faint at 54" 2343 3D: to 92". 2356 1D: Triple system with HR 2357 and 2358. Combined mag, color 3.74V, -0.15(B-V), all Be stars. AB, 17000y; AC, separation 10", 2356 2D: 29000y. Component D, 12.2v at 26" from A. Uncertain which of components A,B,C, HR 2356,7,8 is the light variable 2356 3D: NSV 2977, for which the mag 3.75V is a blend of all three. 2357 1D: See HR 2356. 2358 1D: See HR 2356. 2366 1D: AB binary. B is K0V. Component C, 11.4v at 45" optical. 2370 1D: Double emission lines of which red component variable intensity. Component B, 9.09V, -0.05(B-V), -0.30(U-B), B9IVe, 2370 2D: RV +6k/s, vsini 201k/s. 2373 1D: Companion F5V, optical. 2378 1D: Optical. 2384 1D: Quadruple system, AB 6.1 G5, 6.2, 52.9y, a = 0.484". CoD = -50d2440, 9.7, 9.8v separation 0.5" at 12" from AB, 105.6y, a = 2384 2D: 0.535". AB, CD are compound multiple. 2397 1D: Companion 8.70V, -0.08(B-V), -0.40(U-B), A0V, optical? 2404 1D: Fixed separation 2421 1D: A* 1.93 A0IV, 12.9y, a = 0.038". 2423 1D: compound multiple. Companion 7.65V, +0.32(B-V), +0.02(U-B), F2V. 2424 1D: AB binary. C, 11.5v at 21". 2425 1D: Discovered by both occultation and speckle interferometry 1978, separation 0.075"; 1983.93, separation 0.13". 2431 1D: 6.9 G0V, 7.3 G1V, 29.0y, a = 0.295". Combined mag, color. 2433 1D: Companion A2V. 2456 1D: AB binary, 4.8 Oe5, 7.6 B7; C, 9.9v B8V at 17", physical, vsini 141k/s; D, 9.7v A6III at 41", physical, vsini 115k/s; 2456 2D: E1 the brighter component of E, B5V at 74", probably optical, vsini 253k/s; E2, A0V, vsini 132k/s. 2462 1D: Binary. Companion A0. 2467 1D: Some spectral lines appear double, indicating separation of about 110k/s and vsini of 90 and 75k/s. 2468 1D: compound multiple. 2470 1D: AB 5.37 A2n, 5.95 A2V, 699.0y, a = 1.660"; vsini of B 100k/s. C, 7.1v at 8", physical. 2473 1D: Companion 9.22V, +1.13(B-V), +0.91(U-B), K0III-IV. 2475 1D: Companion has A-type spectrum. 2478 1D: Optical. 2481 1D: compound multiple. 2483 1D: Companion orange, optical. 2485 1D: compound multiple with 2486. Hardly any change in 110y. 2486 1D: See HR 2485. Color for combined light. mag for blended images 5.52V. 2491 1D: AB -1.46 A1V, 8.49 A1V, 50.090y, a = 7.500" or 49.94y, a = 7.62". D, 14.0v at 32" from A. C, companion to B at 1.4" 2491 2D: suspected but not confirmed. B is first white dwarf ever discovered; predicted by Bessel (1844) on basis of orbital 2491 3D: motion of Sirius, it was first seen by Alvan Clark in 1862, and its peculiar high temperature, small size and great 2491 4D: density established by W. Adams in 1925. 2499 1D: 6.81 A1V, 7.01 A2V, 1057.8y, a = 1.536". Combined mag, colors. 2519 1D: Component B, 13.31V at 27.5", optical. 2520 1D: AB 5.7 G4III comp., 6.9 A2, 480y, a = 0.736". Combined mag and color. C and D 6.3 and 6.2 pv fainter than AB. 2528 1D: AB binary. 2529 1D: Optical. 2530 1D: compound multiple. 2539 1D: AB fixed. 2545 1D: AB binary. B discordantly classified B9V: or A6:, vsini 158k/s. 2560 1D: AB binary. C, 13v at 29" optical. D, 9.5 at 207". 2564 1D: AB 4.8 A9Vp, 7.6 G6V, 1943.8y, a = 8.194". Combined mag, colors. 2588 1D: Component B is 9.3v K5 at 44"; D, 9.5 at 130". 2590 1D: compound multiple. 2593 1D: AB fixed. 2605 1D: 7.1, 7.1v, separation 0.040". Resolved by speckle interferometry 1983.93, separation 0.06"; unresolved 1984.93 and 1985.25. 2612 1D: 6.9 F8IV-V, 7.1 F8IV-V, 16.74y, a = 0.218". Combined mag, colors. 2618 1D: Fixed separation 2620 1D: AC, mag diff 6.1v, separation 32"; AD, mag diff 6.1v, separation 60"; AE, mag diff 6.4v, separation 50". 2621 1D: Component B, M5III; component C, F6V, optical. 2628 1D: Component X, K-type spectrum, optical. 2631 1D: Separation 0.020". 2644 1D: AB binary. 2650 1D: Component A is suspected occultation double, 4.5, 4.5v, separation 0.1". B, 10.5v at 87". C, +20d1686, 7.55V, +0.62(B-V), +0. 2650 2D: +0.07(U-B), G1V at 96" has high proper motion, 0.100", optical, vsini =<54k/s. Other components fainter. 2667 1D: compound multiple with HR 2668 and third component, 9.2v K2 at 200". 2668 1D: See HR 2667. 2670 1D: Component B, 10.3v, F5III. 2677 1D: AB binary A9V, F6V. compound multiple with C, 10.0v at 37". 2678 1D: Component C, 9v at 18" probably optical. 2684 1D: AB optical. 2697 1D: AB compound multiple. 2699 1D: Component B, 11.3v, F3V. 2711 1D: AB 7.18 F8V, 7.23 F8V, 116.50y, a = 0.929". Combined mag, colors. C, 12.5v at 16" optical. 2725 1D: Optical. 2733 1D: Companion 9.07V, +0.77(B-V), +0.35(U-B), G1III or G5III, RV -3k/s, optical? 2735 1D: Binary with HR 2736. 2736 1D: Binary with HR 2735. Combined mag and colors, 3.63V, +0.91(B-V), +0.60(U-B), +0.48(R-I). 2745 1D: 31?y. Separation 0.098". 2762 1D: Companion optical. 2763 1D: ADS 5961A is dubious occultation double, 4.0, 5.0v, separation 0.045". B, 10.7v at 10" is compound multiple. 2764 1D: B, 6.01V, +0.49(B-V), dF0, optical. 2768 1D: compound multiple. 2777 1D: AB 3.55 F0IV, 8.18 K3V, 1200y, a = 6.975". Component A is SB, 3.7, 5.7v, separation 0.2". 2782 1D: B, 10v at 8" fixed. D, 8.22V, -0.19(B-V), -0.93(U-B), B2V at 85". 2783 1D: Binary with HR 2784. Component C, 10.9v at 74". 2784 1D: Binary with HR 2783. Component D, 8.9v A0V at 215". 2793 1D: AB compound multiple. C, 12.7v at 42" optical. 2795 1D: B optical. 2808 1D: Suspected occultation double. 2813 1D: Binary with HR 2814. 2814 1D: Binary with HR 2813. 2827 1D: Companion is A0V, optical, vsini =<54k/s. 2829 1D: Companion F5V, optical. 2837 1D: Suspected occultation double. 2842 1D: Combined mag and colors with HR 2843, 6.15V, +0.25(B-V), +0.15(U-B). 2843 1D: See HR 2842. 2844 1D: AB binary: B, 10.1v separation 1"; C compound multiple. 2846 1D: A is occultation triple, 5.9, 6.4v separation 0.001" and 7.5v at 0.047". Visual companions B, 9.5v at 43" compound multiple; C, 10.5v at 2846 2D: 146". 2849 1D: Optical? 2851 1D: compound multiple. 2852 1D: B, 12.5v at 3" compound multiple. 2859 1D: ABC fixed. B, 8.1B; C, 8.6 B8V or B9p Hg Mn: at 20". mag, color for combined light. 2868 1D: AB 6.4 F4V, 7.5, 1090.9y, a = 3.684". C, 11.5v M0 at 21" orbital period around AB probably over 10000y. Component D, 2868 2D: 12v at 42" optical? 2870 1D: mag and colors for combined HR 2870-1, 5.94V, -0.16(B-V), -0.67(U-B). 2878 1D: compound multiple. Companion G5V. 2879 1D: compound multiple. Companion F8V. 2883 1D: compound multiple? 2886 1D: Suspected occultation double, 5.4, 7.0v, separation 0.15". Resolved by speckle interferometry 1983.94, separation 0.18". 2890 1D: Binary with HR 2891. Combined colors. 2891 1D: AB 1.98 A1V, 2.88 A5Vm, 511.30y, a = 7.369 or 420.07y, a = 6.295". C, 8.8v M1Ve at 73" is physical member of sextuple 2891 2D: system in which A,B,C are all SB. 2896 1D: AB binary. Resolved by speckle interferometry 1983.94, separation 0.24". 2909 1D: Binary with HR 2910. Colors for combined light. Magnitude of blended images 5.09V. 2910 1D: See HR 2909. 2921 1D: AB fixed; B, 12.2v at 5". C, 9.71V, +0.03(B-V), -0.23(U-B), B9.5V, optical? 2922 1D: Companions optical. C is G type, strong lithium. 2927 1D: AB, compound multiple. B, 13.2v at 26". 2937 1D: Triple system, components all about same mag and within about 1". 2938 1D: Occultation binary, separation 0.03". 2943 1D: AB .35 F5IV-V, 10.3, 40.65y, a = 4.548". Binary nature first revealed in 1840 by variable proper motion; companion 2943 2D: first seen in 1896. Component C, 11.7v at 122" optical. 2944 1D: Unresolved by speckle interferometry. 2948 1D: Binary with HR 2949 at 10". C, 13.8v at 6" optical. Colors for combined light AB. Combined mag 3.82V. 2949 1D: See HR 2948. 2950 1D: AB binary. 2960 1D: Optical. 2979 1D: Binary with HR 2980. Colors for combined light. Blended mag 6.34V. 2980 1D: See HR 2979. 2990 1D: All the visual companions optical. 3003 1D: D. W. Dunham gives 5.8, 5.8v, separation 0.1". 3009 1D: Binary with HR 3010. 3010 1D: Binary with HR 3009. 3013 1D: C optical. Some disagreement as to which of B and C is the brighter. 3029 1D: Binary. Companion dG3. 3050 1D: Binary, 211.8y, e 0.17, a 0.265", i 59.1d, mag diff 0.2. 3055 1D: Companion B9V, RV -72k/s, optical. 3064 1D: 5.6 F9V, 6.2 G4V, 23.18y, a = 0.58". Combined mag, colors. Masses 0.86 and 0.99 solar. 3070 1D: Optical. 3072 1D: 6.4 F2, 6.7, 30.8y, a = 0.295". 3079 1D: Binary. 3098 1D: 7.0 F5V, 7.1 F7V, 57.04y, a = 0.44". Combined mag, colors. 3104 1D: Occultation double. 3142 1D: compound multiple with HR 3143. 3143 1D: compound multiple with HR 3142. 3157 1D: Companion B9IIIp. 3162 1D: Fixed separation Companion 8.77V, +1.30(B-V), +0.07(U-B), M6III, optical. May be Mira-type variable. 3164 1D: Binary. Combined light and colors. 3174 1D: B is A0. BC double 8.6, 13.0 separation 1". 3177 1D: Component B, 8.66V, -0.09(B-V), -0.52(U-B), B9IV. 3183 1D: Companion not confirmed. 3186 1D: Companion K0. 3188 1D: B, 10.1v G8II at 33" optical. C is K2III. 3194 1D: Companion A5III, optical. 3205 1D: Components B6V and B9V. 3206 1D: Component B of 5 stars within 2' of HR 3207. 3207 1D: See HR 3206. mag and colors blended with other companions. C = CoD -46d3848, 7.65V, B6V at 63", physical. D, 9.07V, 3207 2D: Am at 94", SB, over 7d?, optical. 3208 1D: Combined mag and color for 3208-9-10, 4.67V, +0.53(B-V). AB 5.63 F7V, 6.02 F9V combined colors (AB), 59.7y, 3208 2D: a = 0.884". Component C = HR 3210. 3209 1D: See HR 3208. ABxC, 1150y, a = 7.96". 3210 1D: See HR 3208. C* 6.20 G5V, 17.5y, a = 0.191". Astrometric companion also found by occultation, 9.0v. Cc resolved by 3210 2D: speckle interferometry. 3222 1D: Suspected occultation double. 3236 1D: B, 9.78V, +0.39(B-V), -0.02(U-B), F5IV. 3244 1D: Companion K5V, RV +7k/s, optical. 3249 1D: compound multiple. 3260 1D: compound multiple, A2IV, F2V. 3278 1D: 7.1 A, 7.4, 435y, a = 0.654" or 241.4y, a = 0.569". 3283 1D: Companion A2V, optical. 3291 1D: AB, sep 0.100", unresolved by speckle interferometry. 3301 1D: compound multiple with HR 3302. 3302 1D: compound multiple with HR 3301. C, 8.5v at 38" from B, binary. 3310 1D: Binary with HR 3311. Colors for combined light. 3311 1D: See HR 3310. 3312 1D: Binary with HR 3313. 3313 1D: BC 8.6 dF6, 8.6, 21.82y, a = 0.19". Also binary with A, HR 3312. 3315 1D: B, K1III optical. 3323 1D: B is 15v at 7", compound multiple. C and D optical. 3327 1D: Binary with HR 3328. 3328 1D: Binary with HR 3327. 3330 1D: Component B, CoD-51d3003, 10.2v, B8V, optical. Third component G3V may be physical. 3333 1D: Uncertain if double or triple; 6.4, 6.9, separation 0.25", other possible component 7.0v at 3". Occultation obs. uncertain. 3337 1D: AB 7.1 A5m, 7.2 late F, 53.0y, a = 0.321". C, 10.5v at 18" binary around AB. 3343 1D: AP 6.6, 6.6v binary. Combined mag and colors. B, 9.7v at 25" optical. 3345 1D: Companion 10.3v, F2V, optical? 3352 1D: compound multiple. 3357 1D: Occultation pair 6.4, 6.4v, blended mag and colors. Visual component 10v at 63". Suspected as double by Innes from 3357 2D: observation of occultation of April 28, 1898 (references: Astron. Nachr. 150, 423, 1899; MNRAS, 61, 416, 1901; 3357 3D: Cape Ann. 2, part 6, 1907). 3358 1D: AP, 6.4, 6.4v, separation 0.176", combined mag, color. Components B, 7.7v at 4" binary with AP, C, 9.3v at 19". 3359 1D: Components B2III and B2.5V. 3362 1D: Equal components reported; however, duplicity not confirmed. 3381 1D: AB 6.9 A7, 7.0, 136.5y, a = 0.568". Combined mag and color. 3386 1D: SKYLAB indicates cool star with hot companion. 3395 1D: compound multiple with HR 3396. 3396 1D: See HR 3395. 3397 1D: 7.2 G5IV-V, 7.2 G5IV-V, 13.9y, a = 0.160". Combined mag, colors. 3399 1D: Components M1IIIa and G7IIIb. 3427 1D: Components B, 6.60V, +0.01(B-V), +0.03(U-B), A0III at 150", vsini =<40k/s; P, 9.22V, +0.39(B-V), +0.01(U-B) at 134"; and 3427 2D: Q, 8.81V, +0.32(B-V), +0.09(U-B), F2V, at 135", vsini 86k/s, form a physical system with A. B is 40 Cnc; Q is +20d2161. 3428 1D: ACD a physical group: C, 7.70V, +0.20(B-V), +0.16(U-B), Am, vsini <45k/s. D, 9.39V, +0.41(B-V), +0.03(U-B), F5V at 3428 2D: 83". B, 10.37V, +0.59(B-V), +0.11(U-B), G0IV-V at 21", compound multiple. 3430 1D: AB 5.3 G3V, 6.7 K0V, 145.0y, a = 1.700" or 140.0y, a = 1.8884". Combined mag, colors. 3434 1D: 6.5 F3IV, 7.6 F6V, 66.5y, a = 0.527". Combined mag, color. 3439 1D: Companion A2V. 3441 1D: Optical. 3442 1D: compound multiple? Companion F0IV. 3449 1D: Component A suspected occultation double. Three visual companions. 3461 1D: AP, suspected double, unresolved by speckle interferometry. Visual companion 12.2v at 38" optical. 3466 1D: Binary with HR 3467. Component C 8.0v at 0.5" from B. 3467 1D: See HR 3466. 3472 1D: Binary. Companion is dF3. 3474 1D: Binary with HR 3475. 3475 1D: Binary with HR 3474. 3482 1D: AB 3.8 G5III, 4.7 A8IV or F0V, 15.05y, a = 0.238". Speckle interferometric separation 0.263-0.272", 1980-3. Combined mag, 3482 2D: colors. ABxC, 3.4, 7.8, dF7 at 3" from AB, 890y, a = 4.536". Component D, 12.7v at 19" from A, in hyperbolic orbit 3482 3D: about ABC, periastron distance, 29". 3485 1D: AB binary with compound multiple double companion CD at 69". CD 11.0, 13.5v separation 6". 3489 1D: Components B8III and B7IV. Component B, RV +24k/s. 3492 1D: compound multiple. 3494 1D: Wide compound multiple pair with HR 3496. 3496 1D: See HR 3494. 3510 1D: Separation 0.05", but duplicity doubtful. 3522 1D: compound multiple. 3523 1D: AB binary. Other components optical. 3527 1D: compound multiple. 3532 1D: AB binary. B is K0. 3542 1D: Binary. Combined mag, colors. 3550 1D: Suspected occultation double. 3551 1D: 6.1 Am, 6.1, 7.24y, a = 0.1036". Combined mag, color. 3552 1D: Binary with HR 3553. 3553 1D: Binary with HR 3552. Colors for combined light. Blended mag, 6.08V. Levato indicates spectral classes G5III+A0V, both 3553 2D: vsini =<50k/s. 3556 1D: IDS gives two other components. CD, both 11v separation 2.5" but does not indicate separation from A or B. 3563 1D: 7.0, 7.0v; combined mag, colors. Unresolved by speckle interferometry. 3569 1D: BC 10.8, 11.0, 39.69y, a = 0.68". BC is dM1. BCxA: 817.91y, a = 9.092". Separation rapidly decreasing. ADS 7114Aa, 3569 2D: 11.02y, a = 90.354". This is the SB pair. 3572 1D: ADS 7115A is questioned close double. Combined mag, colors, 5.0, 5.0v, separation 0.1". B is 10.8v at 11", binary. 3579 1D: AB 4.11 F5V, 6.18 G5V, 21.85y, a = 0.619". Combined mag, colors. Companions C - E optical. Masses A, 1.13; B, 0.84 3579 2D: solar. 3582 1D: Fixed. B is B9.5V. vsini both components 0k/s. 3587 1D: AB fixed. 3590 1D: compound multiple. Companion F3IV. 3594 1D: 4.2 A0IV-V, 4.4 A0V, 70.1y, a = 0.27" or 64.29y, a = 0.26". mag, colors for combined light. 3598 1D: Optical. 3616 1D: AB 4.85 F7IV-V, 8.16 K2V, 1067.1y, a = 6.20". C, probably optical. 3617 1D: AB binary. B is F5V. C, optical. 3622 1D: Binary. 3623 1D: Triple SB system. Combined mag, colors. 3624 1D: B, optical. 3627 1D: Unresolved by speckle interferometry. 3640 1D: Unresolved by speckle interferometry. 3644 1D: BC, 10.5, 10.8v, separation 0.3", compound multiple? 3648 1D: Noted by W. Herschel as double, separation 49", is probably error: single star. 3650 1D: AP 7.2 G9V, 7.2 G9V, 2.65y, a = 0.126". Resolved by speckle interferometry 1983.94, separation 0.17". Combined mag, 3650 2D: colors. 3661 1D: AB 6.7, 7.2v separation 0.11". Combined mag, colors of ABC. 3665 1D: AB optical. 3680 1D: Binary, combined mag, colors. 3689 1D: Optical. 3690 1D: AB binary. 3697 1D: AB, mag diff 4.6v, binary. 3701 1D: AB 6.50 F3V, 6.74, 389.05y, a = 1.516". 3704 1D: Binary. 3709 1D: AB compound multiple. BC, 6.87v F5V, 9.0v K2V, separation 9", physical. B, 7.04V, +0.35(B-V), +0.03(U-B), vsini =<60k/s. 3712 1D: AB 6.1 F4V, 6.1, 3.2y, a = 0.124". 3715 1D: compound multiple. Components B9V and A0V. 3720 1D: AB binary. C, 10.0v at 7", compound multiple? 3724 1D: AB 7.3 A2, 7.4, 58.93y, a = 0.150". Combined mag, colors. 3725 1D: compound multiple. 3731 1D: AB binary. 3744 1D: AB combined mag, colors. C, 11.5v at 10.7". All three compound multiple. 3750 1D: compound multiple. 3752 1D: compound multiple. 3754 1D: 5.87 dF8, 6.53, 116.85y, a = 0.875" or 118.227y, a = 0.880". 3755 1D: compound multiple. 3757 1D: AB binary. C, 10.5v at 100", optical. 3759 1D: compound multiple. 3770 1D: Optical. 3775 1D: compound multiple. 3779 1D: Companion 9.54V, +0.44(B-V), +0.03(U-B), F6V. 3780 1D: compound multiple with HR 3781. 3781 1D: compound multiple with HR 3780. mag and colors for combined light, 5.76V, +0.05(B-V), +0.05(U-B). 3782 1D: Suspected occultation double. 3786 1D: 4.1 F2IV, 4.6 F0V, 33.99y, a = 0.795". Combined mag, colors. 3792 1D: Optical. 3800 1D: Suspected double unconfirmed by speckle interferometry. 3806 1D: Binary. Secondary F0. 3811 1D: AB fixed? B is F5. C, at 118". Probably optical. 3815 1D: Binary? 3817 1D: Secondary B8V, vsini 157k/s. 3818 1D: compound multiple. Companion F8V. Discordant magnitudes and colors: Nicolet: A = 7.86V, -0.10(B-V), -0.43(U-B); B = 9.07V, 3818 2D: +0.55(B-V), +0.01(U-B). USNO Photoelectric Catalogue: A = 6.36V, +0.01(B-V), +0.03(U-B); B = 9.51V, +0.50(B-V), 3818 3D: +0.03(U-B). Component A suspected occultation double. 3826 1D: Suspected occultation double; possibly SB. 3840 1D: compound multiple. 3844 1D: compound multiple. 3852 1D: Component B, 9.9v at 85". 3858 1D: Companion G8V, RV +14k/s, optical. 3863 1D: 6.0 A2, 6.1, 10.72y, a = 0.142". Combined mag, colors. 3871 1D: 5.4 F7V, 5.6 F8V, 18.32y, a = 0.134". Combined mag, colors. 3880 1D: Binary 7.0, 7.2v, separation 0.031", resolved by speckle interferometry at 4-meter Mayall telescope, but unresolved 1983.96 3880 2D: at Pic du Midi. Combined mag, colors. 3888 1D: compound multiple. 3889 1D: AB, about 200y. B also A8IV. 3890 1D: compound multiple with HR 3891. mag and colors for combined light, 2.96V, +0.27(B-V), +0.12(U-B), +0.29(R-I). 3891 1D: See HR 3890. 3894 1D: 5.30 A3IV, 5.38 A3IV, 105.5y, a = 0.360". Combined mag, colors. 3898 1D: Secondary B9. 3909 1D: AB 5.58 A1V, 6.07 A4V, 77.55y, a = 0.383". Combined mag, colors. C, 12.28V at 36" optical. 3916 1D: Binary. 3925 1D: Binary. Combined mag, colors. 3940 1D: Companion K0III, optical. 3943 1D: compound multiple companion A0III; however, the companion is optical. 3947 1D: compound multiple. 3951 1D: Fainter component is BD+32d1968. Probably optical. 3963 1D: AC binary. B, 12v at 12" optical. C, 7.0v A0, vsini 50k/s. 3973 1D: Suspected occultation double. 3975 1D: Binary, separation 0.097", unresolved by speckle interferometry 1982.17. 3976 1D: 5.3 K0IV, 6.9 G5V, 232y, a = 0.64". Combined mag, colors. 3979 1D: ABxC, compound multiple. C is 13.0v at 28". 3980 1D: compound multiple. 3982 1D: AB binary, B, 8.13V, +0.86(B-V), +0.51(U-B), K1V. BC, 7.6, 13.1v, 2000y, a = 4.163". 3994 1D: Visual companions both optical. 3998 1D: compound multiple. 4021 1D: AB binary. Both A and B Am stars. vsini both components =<25k/s. B is 7.36V, +0.30(B-V), +0.19(U-B). 4028 1D: 7.2 dF2, 7.5, 552.0y, a = 1.299" or 810.5y, a = 1.198". Combined mag 4031 1D: Primary unresolved by speckle interferometry 1982.17. 4039 1D: Companion is M1. 4043 1D: 6.9 A5V, 7.0 A5V, 124.0y, a = 0.435". Combined mag, color. 4057 1D: AB 2.22 K0IIIP, 3.47 G7III, 618.56y, a = 2.505". B is HR 4058. Colors for combined light. mag for blend, 1.90V. 4057 1D: Component C is the flare star AD Leo (8.07-11.00B) at 5', optical. 4058 1D: See HR 4057. 4065 1D: compound multiple? Combined mag, colors. Components A1V and A1Vn. 4074 1D: AB binary? 4085 1D: B, 13v at 8", optical. 4098 1D: compound multiple. 4100 1D: 4.40 G8III-IV, 6.12 F8V, 37.92y, a = 0.340". Combined mag, colors. 4101 1D: Primary is occultation double, 6.7, 6.7v, separation 0.02". 4112 1D: Triple compound multiple and common RV system. B = BD+56d1458, 9.94pg; C = BD+57d1266, 8.99pg. 4118 1D: Companion F9Ve, strong lithium. Primary is SB. 4122 1D: AB compound multiple. B is F6V. C, 9.5v at 64" optical. 4124 1D: Optical. 4128 1D: B = CPD-60d1944 = HD 91269, 7.54V, -0.08(B-V), -0.57(U-B), B5Vne, shell star. 4132 1D: Visual companion optical. 4133 1D: 4.4, 4.8v, separation 0.11"; combined mag, colors. 4134 1D: Companion K5, optical. 4135 1D: Fixed with HR 4136. mag and color for combined light, 5.16V, -0.15(B-V), -0.62(U-B). 4136 1D: See HR 4135. 4143 1D: compound multiple? Companion spectral class A. 4148 1D: A is SB. Visual companion 8.5v at 2.4"; compound multiple. 4157 1D: 6.7 F4V, 7.5 G0V, 210.1y, a = 0.982". Combined mag, color. 4158 1D: Optical. 4161 1D: Companion A8III, optical. 4167 1D: 4.2 F3IV+F0V, 5.1 A6V, 16.30y, a = 0.340". 4177 1D: Fixed. Combined mag, colors. Companion A5V. 4179 1D: Optical. 4180 1D: Probably compound multiple. B is B8. C, 11.2v at 20" from B. 4185 1D: Lambda 4200 star. 4189 1D: Companions optical. 4191 1D: AB compound multiple. B is GC 14751, dG0. 4193 1D: AB binary. B is K0III. 4201 1D: Separation 0.03", but duplicity doubtful. 4211 1D: compound multiple with HR 4212. 4212 1D: compound multiple with HR 4211. 4216 1D: 2.7 G5III, 6.4 G2V, 116.24y, a = 1.437". Secondary also classified F8:V:. 4249 1D: compound multiple. Companion 8.75V, +0.58(B-V), +0.01(U-B), G0V, RV = +18k/s. 4251 1D: B, optical. 4253 1D: Suspected visual binary unresolved by speckle interferometry. 4259 1D: Binary with HR 4260. Colors for combined light. Blended mag 4.32V. 4260 1D: See HR 4259. 4265 1D: AB 6.1 F2III, 8.0, 128.34y, a = 0.823", or 90y, a = 0.75. Visual primary is SB, separation 0.001". 4291 1D: Suspected occultation double. 4294 1D: Optical. 4301 1D: 1.87 K0III, 4.81 F0V, 44.4y, a = 0.603". Also classified K0II-III + A8V:. Combined mag, colors. Also compound multiple at 280" 4301 2D: with HD 95638 = GC 15179, 7.12V F8; SB, 6.04d. 4302 1D: Unresolved by speckle interferometry. 4303 1D: Suspected occultation double. 4305 1D: compound multiple. 4309 1D: AB, compound multiple. 4314 1D: 5.6 F4V, 5.7 F4V, 7.40y, a = 0.140". Combined mag, colors. 4347 1D: 6.7 B9V, 7.1 A1V, 233.0y, a = 0.383". Astrometric binary. Combined mag, colors. 4351 1D: Fixed separation 4352 1D: Fixed separation 4355 1D: Companion A0, optical. 4363 1D: compound multiple. 4365 1D: If secondary is on main sequence, the spectral class is inferred to be F1V. 4369 1D: AB compound multiple. B, 11.5v at 1". C, optical. 4374 1D: Binary with HR 4375, q.v. 4375 1D: AB 4.32 G0V, 4.79 G0V, 59.840y, a = 2.530". Combined colors. mag for blend 3.79V. AB, first visual double for which an 4375 2D: orbit determined, in 1828 by Savary. Third component astrometric with A, 1.832y, a = 0.055". 4377 1D: compound multiple. 4390 1D: 4.3 B5VN, 5.0 B6V, 39.18y, a = 0.277". Combined mag, colors. 4399 1D: 4.03 F2IV, 6.70 G3V, 192.0y, a = 1.92"; possible subsystem with period about 16y. Combined mag, colors. Combined 4399 2D: mass about 3 Suns. 4400 1D: Separation 0.0034", discovered by occultation. 4409 1D: Companion not confirmed. 4414 1D: AB 6.51 K0IV, 7.57 K2IV-V, >4000y. Combined mag 6.16V. C, 9.9v at 90" probably physical. 4422 1D: ADS 8175AB, 8.2 dG5, 4500y. 4423 1D: Primary SB. Visual companion A3V. 4437 1D: 5500y. Circular orbit. Companion, K6IV. 4439 1D: 5.75 F6V, 7.07 G3V, 72.87y, a = 0.813". Combined mag, colors. 4441 1D: Possibly wide physical pair with HR 4442. 4442 1D: See HR 4441. 4443 1D: compound multiple with HR 4444. 4444 1D: compound multiple with HR 4443. Combined colors. Combined mag 5.00V. 4453 1D: Binary. 4456 1D: AB binary. Combined mag, colors. B is B6. C, 9.64V F5 at 63". 4465 1D: AB long period binary. C, 11.17V at 21" optical. 4467 1D: Companion B9V, optical. 4471 1D: Duplicity doubtful. 4484 1D: compound multiple. 4486 1D: AB binary. 4490 1D: compound multiple. 4492 1D: 5.5 G0, 6.3 A0, combined mag, colors. 4501 1D: Resolved by speckle interferometry 1986.44, separation 0.03". 4503 1D: AC compound multiple. C, 8.44V, +0.50(B-V), +0.035(U-B), F7V. 4512 1D: Optical. 4531 1D: 6.0 A8V, 8.3 G2V, 122.0y, a = 0.68", 180y, a = 1.00". Combined mag, colors. 4534 1D: B, 15.7v at 40" physical; C, 13v at 80" optical. 4540 1D: Companions optical. 4544 1D: Suspected occultation double. 4549 1D: Combined mag, colors. 4550 1D: The reality of the companion, CF UMa, announced by P. van de Kamp (see Low Luminosity Stars, ed. S. S. Kumar, p. 199, 4550 2D: 1968) has been questioned (PASP, 96, 557, 1984). Unresolved by speckle interferometry 1980.47. 4557 1D: compound multiple. Combined mag, colors. 4560 1D: Binary with HR 4561 = ADS 8347D. AB binary 7.2, 9.0 separation 0.3". ABxC, 8.4 at 4" also binary. 4561 1D: See HR 4560. 4564 1D: Discovered as double by W. Herschel, separation 90" but no visual companion subsequently seen at that separation. 4574 1D: AB, compound multiple. B, 12.5v at 7". D, 12v at 140". 4579 1D: Doubtful if double. 4580 1D: Optical. 4581 1D: Fixed separation 4602 1D: Binary. Companion A9V. vsini both components =<50k/s. 4608 1D: Unresolved by speckle interferometry 1982.17. 4610 1D: compound multiple. 4615 1D: AB combined mag, colors. C, 8.2v A3 at 9", compound multiple. 4618 1D: compound multiple with HR 4619, 4621. 4619 1D: compound multiple with HR 4618, 4621. 4621 1D: compound multiple with HR 4618, 4619. 4651 1D: compound multiple. 4652 1D: Binary. Combined mag, colors. 4661 1D: 6.8 F5, 7.9. 4666 1D: Binary. Companion 8.77V, +0.57(B-V), +0.09(U-B), F7V. 4673 1D: compound multiple. 4677 1D: Binary with HR 4678. 4678 1D: Binary with HR 4677. 4679 1D: Companion G8III, optical. 4689 1D: 4.9, 5.4, separation 0.008". Also astrometric and interferometric double, 5.4v separation 0.124", position angle changed 35d in 4689 2D: 1.5yrs. 4695 1D: Primary may be close double 5.8, 5.8v, separation 0.6". Visual companion 11.6v at 132". 4696 1D: Companion F6III optical. 4697 1D: compound multiple. 4698 1D: Companion also dF2. 4707 1D: AC binary. C, 8.55V, +0.52(B-V), +0.01(U-B), F7V. Component B, 12.52v at 35" optical. 4708 1D: Binary. Secondary is dK5. 4718 1D: Components K3IIIab and F8IV. 4719 1D: AB 6.76 A7V, 7.79 F4V, 678.0y, a = 1.30". 4729 1D: Component C of triple system with HR 4730-4731, at 90" compound multiple. 4730 1D: AB 1.35 B0.5IV, 1.75 B3n or B0.5Vn, q = 0.916". mag and colors for blend of HR 4730-31, 0.76V, -0.25(B-V), -1.00(U-B), 4730 2D: -0.24(R-I). Masses 14 and 10 solar for hyperbolic orbit with periastron distance 61 AU. 4731 1D: Binary with HR 4730, compound multiple with 4729. 4734 1D: Faint compound multiple at 542" S. prec. 4751 1D: compound multiple with HR 4752. Component C, 14.7V at 2" from B. 4752 1D: compound multiple with HR 4751. 4757 1D: compound multiple. B is K2Ve, lithium strong. 4758 1D: AB 6.5 G0V, 8.6, 161.53y, a = 1.385". 4789 1D: Resolved by speckle interferomtery 1986.45, separation 0.31". 4791 1D: Binary with HR 4792. 4792 1D: Binary with HR 4791. 4798 1D: Companion B4V, optical. 4804 1D: compound multiple? Combined mag, colors. 4806 1D: Companion B7p. 4819 1D: AB 2.9 A0III, 2.9 A0III, 84.50y, a = 0.930". Combined mag, colors. 4821 1D: Binary with HR 4822, q.v. 4822 1D: Binary with HR 4821. Colors for combined light. mag of blend, 5.27V. Component C, 10.5v at 59" optical. 4825 1D: AB 3.48 F0V, 3.50 F0V, 171.37y, a = 3.746". Speckle interferometric separation 3.674", 1982.38. Combined mag 2.75V. Colors 4825 2D: for combined light. Component C, 15v at 53", optical. 4826 1D: Binary with HR 4825, q.v. 4844 1D: 3.7 B2V, 4.0 B3V, 383.12y, a = 1.735". Combined mag, colors. 4848 1D: Probably optical. compound multiple? Companion A3p. 4853 1D: Interferometer measures indicate close double or multiple star. Component B, 11.4v, F8V, optical; C, 7.5v, B8. 4869 1D: Optical. 4870 1D: Equal components. 4877 1D: B, optical. 4891 1D: Suspected occultation double. 4892 1D: compound multiple with HR 4893. 4893 1D: compound multiple with HR 4892. 4894 1D: AB 5.05 G8III, 7.22 F3V, 510y, a = 1.42", or 674.23y, a = 1.897"; masses 2.7 and 1.4 solar. Component C, 9.74V, 4894 2D: +0.73(B-V), +0.31(U-B) G3IV-V 29", possibly physical, although a hyperbolic orbit has been computed with periastron 4894 3D: about 400 years ago. 4898 1D: compound multiple with HR 4899. 4899 1D: compound multiple with HR 4898. 4901 1D: Combined mag, color, 6.7, 6.8v, separation 0.100"; occultation double. 4902 1D: Close binary, separation 0.040", unresolved by speckle interferometry. If companion on main sequence, the inferred spectral 4902 2D: type is F6V. 4908 1D: Companion K0III. 4914 1D: Binary with HR 4915. 4915 1D: Binary with HR 4914. 4917 1D: AB binary? C, 10.4v at 124" optical? 4921 1D: compound multiple. Component A suspected occultation double. 4924 1D: compound multiple. 4925 1D: AB compound multiple. C, 13v at 36" optical. 4926 1D: BC, 9.5, 9.9v separation 2". AxBC optical. 4931 1D: 5.05 F2V, 7.43 G6V, 109.97y, a = 1.270" or 106.7y, a = 1.281". Combined mag, colors. 4935 1D: compound multiple? Combined mag, colors. 4940 1D: Companion K0Ve, high lithium abundance. 4942 1D: compound multiple companion F7V. 4948 1D: AB compound multiple. BC, 11.9, 12.1 separation 0.4" in 1901, single in 1958. Companion at 149" from A, noted by John Herschel, small 4948 2D: nebula. 4952 1D: compound multiple. vsini of secondary 110k/s. 4963 1D: A is SB and speckle interferometric binary, third component 9.4v, separation 7.1". B, 8.00V, +0.20(B-V), -0.09(U-B), compound multiple. 4967 1D: ADS 8805BC. Binary? C, 11.2 at 1". A is HR 4971, not compound multiple. ADS and IDS differ on naming of the components. IDS, 4967 2D: adopted here, is the more consistent with FGW Struve's early discovery. 4968 1D: AB 5.05 F5V, 5.08 F5V, 25.87y, a = 0.662". Colors, spectrum for combined light. mag of blended HR 4968, 4969 is 4968 2D: 4.32V. ADS 8804A speckle interferometric separation 0.43" 1978.40, 0.58" 1981.47. 4969 1D: Binary with HR 4968, q.v. 4975 1D: AB 5.0 B8V, 5.7 B9V, 27.0y, a = 0.185". Combined mag, colors. C, 8.4v at 2" physical. 4978 1D: 7.2 A5V, 7.3 A5V, 19.0y, a = 0.118". Combined mag, color. 4981 1D: B, 12.5v at 79". Component C at 184" discovered by John Herschel in 1897 not seen 1908 or later. 4990 1D: Binary. 4993 1D: Component B, 8.2 A0p, Am?, compound multiple. 4998 1D: Optical. 5010 1D: Companion is GC 17977, 8.2v A2, compound multiple. 5039 1D: Possibly double. 5054 1D: Aa = AP 3.0 A2V, 3.0 A2V, separation 0.0115", 0.056y, a = 0.012". Combined mag, colors AP. Binary with HR 5055. Alcor, 5054 2D: HR 5062, at 709", compound multiple. 5055 1D: Binary with HR 5054, q.v. Separation 14". ADS 8891B also astrometric binary, 57y, a = 0.13". 5056 1D: Interferometer indicates visual component A is multiple system. Occultations yield three companions: 3.1v at 0.0025", 5056 2D: 4.5 at 0.05" and 7.5 at 0.5". Combined mag and colors. Visual component B, 12.0v at 148". 5059 1D: Comp. A is speckle interferometric binary, separation 0.045". 5062 1D: compound multiple with HR 5054-5. 5074 1D: compound multiple with HR 5075. 5075 1D: compound multiple with HR 5074. 5082 1D: Component B is CPD -76d769. compound multiple. 5088 1D: Binary. 5089 1D: 4.5 G8III, 4.7 G9III, 78.7y, a = 0.165". Combined mag, colors. 5094 1D: Unresolved by speckle interferometry. 5106 1D: AB 6.5 A1, 6.9, 197.7y, a = 0.563". C, 12v at 26" optical. 5108 1D: Optical. 5113 1D: AB 6.2 F6V, 6.5, 34.969y, a = 0.463". Combined mag, color. 5114 1D: Companion 8.5v F6V, compound multiple. 5120 1D: AB binary. B is A7IV. 5127 1D: AB 5.01 A7III, 6.91 F0V, 240.0y, a = 1.091" or 220.4y, a = 1.205". Combined mag, colors. 5132 1D: Companion B1p, optical. 5133 1D: Binary. Companion K3III. 5138 1D: AB 6.3 F0IV, 6.3 F2IV, 22.35y, a = 0.208". Combined mag, colors. Masses 7 and 6 solar. 5144 1D: AB binary. B is Am. 5146 1D: AB combined mag, colors. 5148 1D: compound multiple. 5157 1D: Third component 9.2v at 0.8" from A. 5159 1D: Binary. B = NSV 6401. 5170 1D: Visual companion 11.7v at 44". Primary is occultation triple, companions 8.2v at 0.039" and 8.4 at 0.061". 5171 1D: Companion 10.01V, +0.78(B-V). 5173 1D: AB compound multiple. CD at 27", 11.9, 13.1v separation 2", binary. 5183 1D: compound multiple with +7d2692, 9.4v at 486". 5185 1D: Binary, period several centuries. Companion M2. 5189 1D: compound multiple. 5193 1D: Companion F2V, optical. 5207 1D: compound multiple. Companion 7.72V F0Vp. 5210 1D: mag for combined light with HR 5211, 4.32V. Probably not binary. 5211 1D: See HR 5210. 5221 1D: Visual companion, 8.35V, +0.36(B-V), +0.12(U-B), A3Vm, vsini 71k/s. 5222 1D: AB 6.3 F2, 6.5, 257.7y, a = 1.268". mag, colors for combined light. Component E, 8.5v at 66" optical. 5223 1D: Companion B8V. 5233 1D: ADS 9053, 2613y, a = 4.998". 5235 1D: A* 2.68 G0IV. Visual component 8.8v at 113" optical. 5264 1D: B is G type, optical. 5273 1D: A*, 9.897y, a = 0.1075". Unresolved by speckle interferometry 1986.45. 5294 1D: Companion K2V. 5296 1D: Companion K2. 5298 1D: Suspected occultation binary. 5313 1D: Optical companion. 5316 1D: Component B, M3IV; C, F4V; both optical. 5320 1D: Companion F5V, optical? 5328 1D: Binary with HR 5329. 5329 1D: Binary with HR 5328. 5350 1D: AB compound multiple? B is K0V. 5356 1D: AB compound multiple. B, 13.3v at 3". 5359 1D: Combined mag, colors. Occultation separation 0.006", mag diff 1.4B. Possibly triple star with SB. 5365 1D: Optical. 5371 1D: AB binary. 5375 1D: Component A is close double, separation 0.2", combined mag and colors. 5385 1D: BC 7.5 F0V, 7.6 F2V, 39.50y, a = 0.228". Combined mag, colors. Also binary with HR 5386 = ADS 9247A. 5386 1D: Binary with HR 5385. 5396 1D: Binary. Combined mag, colors. 5397 1D: Triple system. BC, 7.0v A4V or A1IV, 8.2v separation 1". vsini of B is 60k/s. 5404 1D: compound multiple. 5407 1D: ABxC, compound multiple. C, 10.0v at 4". 5409 1D: AB binary. Combined mag, colors. 5412 1D: Companion G6Ve, optical. 5414 1D: Fixed with HR 5415. 5415 1D: Fixed with HR 5414. 5422 1D: Companion K1V. 5424 1D: Identification of companion questioned. 5430 1D: Component C optical. 5433 1D: 6.5 A7IV-V, 6.7 A7IV-V, 30.0y, a = 0.210". Combined mag, colors. 5435 1D: Primary found double by speckle interferometry, separation 0.069". Component B, optical. 5439 1D: Companion K0V. 5440 1D: Innes catalogue indicated a faint companion at 6" in 1897, not subsequently seen. 5450 1D: AB combined mag, colors. C, 9.2A1V at 19" = CoD -45d9303, compound multiple? 5459 1D: AB 79.920y, a = 17.515". B = HR 5460, compound multiple with Proxima at 2.2d, discovered by Innes in 1915, a flare star, V 645 Cen, 5459 2D: 12.4 - 13.4p, 11.10V, +1.88(B-V), +2.05(R-I), M5.5Ve. 5460 1D: See HR 5459. 5463 1D: Binary. Companion K5V. 5475 1D: Binary with HR 5476. Colors for combined light. mag for blend, 4.53V. 5476 1D: See HR 5475. 5477 1D: Binary with HR 5478, q.v. 5478 1D: AB 4.52 A2III, 4.55 A2III, 123.44y, a = 0.595". Colors for combined HR 5477-5478. Combined mag 3.78V. vsini 156k/s 5478 2D: for blended HR 5477-8. 5492 1D: Binary. 5497 1D: Binary, components F0V, G1V. 5504 1D: 7.0 F7V, 7.2, 25.95y, a = 0.297". 5505 1D: Binary with HR 5506. 5506 1D: Binary with HR 5505. Colors for combined light. mag of blend, 2.37V. 5520 1D: compound multiple? 5523 1D: AB and AE binary. B = Am(A2/A6/A8)s. C and D optical. E 12.5v at 27". 5527 1D: In Innes catalogue, 6.5, 6.5v separation 0.5" in 1913. Not confirmed. 5528 1D: Binary. 5530 1D: compound multiple with HR 5531 at 231". Component A, HR 5531, is the suspected occultation double, 3.4, 3.8, separation 0.01". 5531 1D: compound multiple with HR 5530. Suspected occultation double. 5537 1D: AB binary, B is G7V. 5538 1D: Binary. Combined mag, color. 5544 1D: AB 4.74 G8V, 6.9 K4V, 151.505y, a = 4.904". Combined mag, colors. Masses 0.89 and 0.74 solar. Perturbation period 5544 2D: 2.2y, a = 0.020" suspected; unresolved by speckle interferometry. Component C optical. 5549 1D: B, 10.8v at 13", compound multiple. 5550 1D: 6.8 F4IV, 7.5 G1IV, 215.4y, a = 1.09". Combined mag 5559 1D: compound multiple? Combined mag, colors. 5568 1D: AB 5.79 K4V, 7.93 M2V, q = 20.388" hyperbolic orbit. Component B is dM2. 5569 1D: compound multiple. 5577 1D: 6.3 A4V, 6.6 A6V, 339.3y, a = 0.93". Combined mag, colors. 5582 1D: AB compound multiple. B is G8V. 5583 1D: compound multiple. Companion M1. 5594 1D: AB compound multiple. Component C, 14v at 32" optical. 5597 1D: compound multiple. Component B F4V. 5605 1D: Binary with HR 5606. Colors for combined light. Blended mag 3.88V. vsini for combined light. 5606 1D: See HR 5605. 5618 1D: 5.3 F5V, var. G2V+G2V, 225.0y, a = 3.772". Combined mag, colors. Combined mass 2.1 solar. 5626 1D: 4.6 B3V, 4.9 B3V, 72.88y, a = 0.422". Combined mag, colors. 5627 1D: compound multiple. Companion A5. 5633 1D: 6.7 A2V, 6.8 A1V, separation 0.08", 8.0y, a = 0.10". Combined mag, colors. Unresolved by speckle interferometry. 5634 1D: Both companions optical. 5637 1D: IUE observations show a B8V companion 2.5 mag fainter than primary. 5642 1D: Optical pair with HR 5643. 5643 1D: See HR 5642. 5646 1D: compound multiple with HR 5647. 5647 1D: See HR 5646. 5649 1D: compound multiple. B is F8. Nearly same proper motion as HR 5646, 5647. 5652 1D: AP 5.1 B9IV, 5.6 B9V, 23.42y, a = 0.116", combined light, colors. Mean mass 5 solar. BC, 10.5, 11.2v separation 1.9". A 5652 2D: physical pair in orbital motion about AP at 58"; possibly quintuple system. 5654 1D: Resolved by speckle interferometry 1986.45, separation 0.51". 5655 1D: 7.1, 7.1v, separation 0.03"; suspected SB, but duplicity doubtful. 5659 1D: Binary. Companion 7.53V, +0.35(R-I), dG6. 5661 1D: Component C, A5V, optical. Component B, RV -16k/s. compound multiple with HR 5664. 5664 1D: compound multiple with the triple star HR 5661. Faint companion of HR 5664, G5V, probably optical. 5667 1D: Suspected of being double. SKYLAB indicates cool star with hot companion. 5680 1D: Companions: B, B9V; C, A-type spectrum. 5681 1D: compound multiple. 5683 1D: AB binary. C, 7.17V at 23" compound multiple. 5694 1D: AB binary. Some disagreement as to whether B or C, at 127" from A, is the brighter. 5697 1D: Probable compound multiple. 5704 1D: 5.1 B5, 5.5 F8, 778.54y, a = 2.384" or 269.90y, a = 2.485". Although a period has been derived, spectroscopic evidence 5704 2D: indicates that the F8 component is a dwarf much closer to the Sun than the B5 star: probably optical. 5708 1D: AB binary. Combined mag, colors. C, 9v at 27" probably optical. 5710 1D: compound multiple? 5727 1D: AB 5.62 G1V, 5.89 G3V, 41.623y, a = 0.907". B is HR 5728. Colors for combined images. mag for blend 4.98V. Masses 5727 2D: 0.95 and 0.94 solar. C, 13.4v at 58" optical; D, 11v at 215" probably optical. 5728 1D: See HR 5727. 5730 1D: Companion K5IV. 5733 1D: Probably binary with HR 5734, a close binary ADS 9626BC. 5734 1D: BC 6.98 dG5, 7.63, 260.10y, a = 1.463". Combined mag, colors of BC. Mean mass BC, 0.52 solar. 5747 1D: First astrometric binary discovered from parallax measurements, by K. Burns, 1931. 5756 1D: B, 8.94V, +0.55(B-V), +0.07(U-B), F6V or G0V, compound multiple at 11.2". A, doubtful occultation double, mag and color combined, 5756 2D: separation 0.03". 5765 1D: BC 7.8, 8.0, combined F0V 54.3y, a = 0.225" or 57.32y, a = 0.245". This pair binary about component A at 9.3". 5771 1D: Companion A5. 5774 1D: Combined mag, colors. Companion resolved by speckle interferometry, separation 0.040" on 1985.5. 5776 1D: 3.5 B2IV-V, 3.6 B2IV-V, 147y, a = 0.59". Combined mag, colors. 5782 1D: Companion B, K0V; C is optical. 5787 1D: ADS 9704 AP, separation 0.097", unresolved by speckle interferometry. Component B, 11.2v at 42", optical. 5788 1D: ADS 9701, 3168y, a = 5.8432". Binary with HR 5789, blended mag, colors. 5789 1D: Binary with HR 5788. CD 13.5, 14.0 separation 4" at 65" from A, optical. 5797 1D: compound multiple. 5815 1D: Binary with HR 5816. 5816 1D: Binary with HR 5815. Combined mag 5.79V. 5829 1D: AB binary, B, 8.5 G8IV-V; C, 11.4 at 135". 5831 1D: Companion 10.33V, +0.49(B-V), -0.01(U-B), F5V, compound multiple. 5833 1D: Binary with HR 5834. Colors for combined light; combined mag, 66V. 5834 1D: Binary with HR 5833. 5842 1D: AB 5.2 A1V, 5.3 AIV, 11.07y, a = 0.117". AB combined mag, color. Resolved by speckle interferometry 1986.45, 5842 2D: separation 0.05". 5846 1D: compound multiple. 5849 1D: 4.08 A0IV, 5.51 A3V, 91.0y, a = 0.74". Combined mag, color. 5851 1D: compound multiple with HR 5852. Combined mag and colors, 5.53V, +0.23(B-V), +0.10(U-B). 5852 1D: compound multiple with HR 5851. 5853 1D: Quintuple system of which E is brightest companion; B, 12.0V at 4"; others at 172" and 208". 5854 1D: SR? Amp. 0.2V. ADS 9765B, optical. 5856 1D: AB binary; C, 9.0 G0 at 51" fixed. 5860 1D: Separation 0.097". 5864 1D: AB, compound multiple. 5867 1D: B, 9.72V, +0.84(B-V), +0.68(U-B), K3V, compound multiple. C, 10.7v at 201". Also compound multiple with BD+15d2906 at 1642", itself a double, 8.4, 5867 2D: 10.5v separation 6". 5873 1D: Component B, K0V. Third component optical. 5887 1D: Components white and orange-red. 5898 1D: B, 10.5v at 1.08"; C, 9.1 at 45"; D, 8.7 at 48". 5900 1D: Binary. 5904 1D: compound multiple. Combined mag, color. 5906 1D: Suspected occultation double. 5915 1D: Binary. 5918 1D: Companion G8V, optical. 5920 1D: Companion F5V, optical. 5925 1D: Binary with HR 5926. mag and color for combined light, 4.585V, +0.09(B-V), +0.07(U-B). 5926 1D: Binary with HR 5925. 5930 1D: Suspected occultation double. 5933 1D: Companions optical? 5944 1D: Primary is SB, 3.4, 6.4v separation 0.0003"; third component, ADS 9862B, 12.2v at 50". vsini both A and B =<100k/s. 5944 2D: Component B, F4V, optical. 5947 1D: Component B, 12.6v at 2", compound multiple. 5948 1D: AB binary. Companion A5Vp. 5953 1D: Possible quadruple system: SB 3.0, 5.0v, separation 0.00001", 3.3v at 0.1", and 4.9v at 0.186". 5954 1D: Component B optical. 5958 1D: Visual companion doubtful. 5961 1D: AB 5.3 A5V, 5.5 A6V, 26.93y, a = 0.366". C, 7.5v at 11". Combined mag, colors. 5968 1D: Companion optical. 5977 1D: Binary with HR 5978, q.v. 5978 1D: Quintuple system ADS 9909A-C is compound multiple with ADS 9910, 7.4 G8V, 8.1K0V separation 11" at 281" from ADS 9909A. ADS 9909AB 4.9 F5IV, 5978 2D: 4.9 F5IV, 45.69y, a = 0.720". Combined mag 4.16V, combined colors. ADS 9909C, 7.30V, +0.75(B-V), dG7 at 7", physical. 5984 1D: compound multiple with HR 5985 = ADS 9913C, at 14" and with B, 5.9v at 0.5", possibly SB. Lunar occultations and speckle 5984 2D: interferometry indicate companions 4.2v at 0.001" from A and 7.6v at 0.129" from C. Occultations by Jupiter and Io in 5984 3D: 1971 indicate complex system. Component C occulted by Io revealed the 2.5 mag fainter companion at 0.1". 5985 1D: compound multiple with HR 5984, q.v. 5989 1D: AB binary, B, 9.2v at 1"; C, 10.4 at 29" fixed; and D, 10.8 at 53" optical. 5999 1D: compound multiple with HR 6000 at 44". CD, 7.1, 11.7v, separation 1.3". 6000 1D: compound multiple with HR 5999. Component B, 13v at 298". 6002 1D: compound multiple. 6006 1D: Components K0.5IIIab and F4III. 6008 1D: Optical pair with HR 6009. 6009 1D: Optical pair with HR 6008. 6018 1D: compound multiple. 6020 1D: Physical pair with HR 6021. 6021 1D: Physical pair with HR 6020. 6026 1D: ADS 9951 at least quintuple system with HR 6027 of which components CD = HR 6026 binary, 6.9 B8V or B9III, 7.9v B9Vp, 6026 2D: separation 2". C is -19d4332. 6027 1D: ADS 9951A is SB, 4.9, 6.9v, separation 0.0003". AB, binary. Component B, 6.9v at 1". Components CD at 41" = HR 6026, q.v. 6027 2D: HR 6026, q.v. 6029 1D: Binary, companion F3V. 6032 1D: A5, F1. 6036 1D: Binary. 6043 1D: AB binary. C, 10.5v at 78". 6046 1D: Separation 0.090". 6050 1D: Companion, 10.73V, +0.58(B-V), +0.08(U-V), F8IV:, compound multiple. 6053 1D: Separation 0.03". 6060 1D: Optical. 6063 1D: AB 5.58 F8V, 6.59 G1V, 1000.0y, a = 6.599". Radio binary: component B is HR 6064. C, 13v at 9" and D, 10.8v at 71" 6063 2D: optical. Also, 12.5v at 633" compound multiple. 6064 1D: Binary with HR 6063, q.v. 6071 1D: A4, A7. 6077 1D: Companion, F9V, compound multiple. 6084 1D: B, 8.26V, +0.25(B-V), -0.23(U-B), B9.5V at 20", optical; vsini : 54k/s. The visual primary is triple: SB, 3.3, 5.3v, 6084 2D: separation 0.0005" and 5.5v at 0.49", discovered by occultation. 6085 1D: compound multiple. 6091 1D: compound multiple. 6092 1D: ADS 10010AB, 6700y. 6095 1D: ADS 10022B, 9.58v, optical. 6097 1D: Components also classified B9.5V(n) and A1V(n). 6100 1D: Separation 0.098". 6105 1D: Binary with HR 6106, q.v. 6106 1D: Binary with HR 6105. mag and colors for combined light, 5.41V, +0.59(B-V), +0.12(U-B). 6110 1D: Visual companion, 9.76V, +0.87(B-V), +0.43, G7IV:. 6112 1D: Binary with HR 6113, combined colors. Combined mag 4.63V. Component C, CoD-23d12862, 7.13v, B9n, 152" compound multiple, 6112 2D: vsini 180k/s; D, 6.56 B3V at 156", vsini 167k/s. E, 8.1v, 0.6" from D. DE is ADS 10045. 6113 1D: See HR 6112. 6115 1D: Companion 7.46v B9V, compound multiple, possibly binary with the SB. 6117 1D: B, 12.0v at 2" compound multiple; C optical. 6130 1D: Binary. Companion gG7. 6134 1D: Var. M1Ib, 5.5 B2.5V, 878y, a = 2.90", masses 15.5 and 7.0 solar. Companion is radio source. SKYLAB confirms cool star, 6134 2D: hot companion. 6137 1D: AB binary. 6142 1D: Components A (F5V) and B both optical. 6148 1D: Visual companion probably optical. 6149 1D: AB 4.16 A1V, 5.22 A4V. 129.87y, a = 0.970" or 126.78y, a = 0.95", combined mag, colors. Component C, 11.0v, 120" compound multiple. 6168 1D: Separation 0.067". Noted as double by speckle interferometry in 1971-2, unresolved at Mayall 4-meter in 1976. Spectrum 6168 2D: double-lined. Resolved by speckle observations 1986.45 (Blazit et al. 1987, A&AS, 71, 57). 6169 1D: Companion A2V, compound multiple; vsini 80k/s. 6174 1D: compound multiple. 6178 1D: Separation AB, 0.102". 6184 1D: compound multiple with HR 6185. 6185 1D: AB binary with HR 6186 = component D; combined colors, combined mag 5.08, B8V, A1V. Component C = HR 6184 compound multiple. 6186 1D: Binary with HR 6185, q.v. 6187 1D: AB binary, 5.6, 9.0v separation 1.6". C = HD 150135, O7:, compound multiple. 6194 1D: Binary with HR 6195. Component B is speckle binary, separation 0.145". Component C, optical. A companion 0.145" from B 6194 2D: discovered by speckle interferometry. 6195 1D: Binary with HR 6194, q.v. 6200 1D: Optical. 6206 1D: compound multiple with HR 6209 at 96". 6209 1D: compound multiple with HR 6206. 6212 1D: ADS 10157AB, 2.90 F9IV, 5.53 G7V, 34.49y, a = 1.355". ADS 10157A*, 10.5y, a = 0.08". 6214 1D: Secondary A5V, optical. 6216 1D: ADS 10173AB, binary. 6220 1D: Companion questioned. 6236 1D: Secondary = GC 22634, 6.47V A8m. Primary, fast rotation, not Am. 6247 1D: compound multiple with HR 6252 at 346". 6252 1D: compound multiple with 6247 at 346". 6254 1D: BC 9.0, 9.1, 56.75y, a = 0.267". AxBC physical. 6260 1D: Component F, 7.3v O6, vsini 125k/s. 6265 1D: Innes and IDS data on components and number of components appear inconsistent. Probably different cluster components 6265 2D: measured. 6267 1D: AB, compound multiple. 6272 1D: Companion F4p. 6277 1D: Third component 14v at 20". 6292 1D: compound multiple. 6293 1D: AC, compound multiple. C, 12.5v at 93". 6298 1D: 6.7 A3V, 6.9 A4V, 37.9y, a = 0.181". Combined mag, colors. 6310 1D: Suspected occultation double. 6312 1D: A8, F3, separation 0.107". 6316 1D: All companions optical. B is A8V, C is F5V. 6319 1D: 7.1 F1V, 7.3, separation 1.02", 577.85y, a = 1.183". 6326 1D: Fixed separation 6329 1D: Binary. 6342 1D: Component B of system with HR 6341. 6343 1D: B, 11.0v at 1.5" compound multiple. 6355 1D: Optical. 6361 1D: compound multiple. 6364 1D: Optical. 6367 1D: 6.2 A1V, 8.2 F3V, 137y, a = 0.415". 6368 1D: Optical. 6369 1D: Binary with HR 6370, q.v., B* 3.2y, a = 0.026"; or 7.4y, a = 0.013", 0.2 solar mass. (Some uncertainty if unseen 6369 2D: astrometric companion is A* or B*.) 6370 1D: AB 5.65, 5.70, combined spectrum F7V, 672y, a = 3.945" or 472.07y, a = 3.143", masses 1.3, 1.3 solar. Combined colors. 6370 2D: mag for blend, 4.92V. C, 13v at 14" physical: revolution about AB on order 4000y. 6377 1D: AB 6.2 A9III-IV, 6.2 A9III-IV, 8.159y, a = 0.116". Mean mass 2.7 solar. Alternate orbit, 16.08y, a = 0.167". Combined 6377 2D: colors. Speckle interferometry indicates companion 1 mag fainter than primary at 0.079". However, speckle 6377 3D: observations 1986.46 (at 7000 Ang.) give separation 0.15". 6378 1D: AB 3.0 A2V, 3.5 A3V, 88y, a = 0.86". Combined mag, colors. 6383 1D: The visual companion is optical. A companion at 0.168" has been discovered by speckle interferometry. 6392 1D: Component B, 10.42V, +0.52(B-V); component C, 11.40V, +1.55(B-V). 6398 1D: Separation 0.108". Speckle observations 1986.45 give 0.14". 6399 1D: AB, compound multiple. 6401 1D: Binary with HR 6402, q.v. compound multiple with CoD-26d12036, 6.34v K5V at 700", same parallax. 6402 1D: AB 5.05 K0V, 5.08 K1V, 548.7y, a = 13.91". mag and colors for combined light, 4.34V, +0.855(B-V), +0.53(U-B), 6402 2D: +0.44(R-I). 6404 1D: compound multiple. 6406 1D: AB, 3600y, a = 4.68". Component B is HR 6407. Combined colors. Combined mag 3.08V. Mass A, 14 solar. Other components 6406 2D: faint, optical. Circumstellar lines around both A, B. 6407 1D: See HR 6406. 6410 1D: ADS 10424B, dG4, optical. 6411 1D: Separation 0.121". 6414 1D: B is dG0, optical. 6416 1D: AB 5.53 G8V, 8.65 M0V, 693.24y, a = 10.415", or 2205y, a = 23.90". Various published orbits range from 242 to 2205y. 6416 2D: Combined mag, colors. 6422 1D: Companion is F2V. 6423 1D: Separation 0.108". 6424 1D: Binary with HR 6425. 6425 1D: Binary with HR 6424. 6426 1D: AB 6.1 K3V, 7.6 K5V, 42.177y, a = 1.734" or 42.09y, a = 1.82", combined mag, colors. Component C, 9.9v M2, 32" 6426 2D: physical. D, 12.8v at 15". 6427 1D: Binary. Combined mag, colors, separation 0.200". 6431 1D: Binary. 6435 1D: AB binary; A3, A6. C, 11.7v at 12" compound multiple. 6441 1D: compound multiple. 6451 1D: Companion G5III, optical. 6458 1D: B not compound multiple; optical. 6461 1D: Possibly compound multiple and same RV as HR 6462, 50'N. 6462 1D: Component B, A7V; C is optical. 6469 1D: Recognized as triple system by speckle interferometry: single star G5IV and close pair of which the brighter component 6469 2D: is F7V eclipsing, separation 0.045". 6477 1D: AB binary. Combined mag, colors. Component C, 7.6v at 103". 6482 1D: Fixed separation Companion A6V, optical. 6484 1D: Binary with HR 6485, q.v. Another companion with separation 0.29" seen on 1981.47 (McAlister and Hartkopf). Unresolved on 6484 2D: 1985.25 (Bonneau et al.). 6485 1D: Binary with HR 6484. Combined colors. Combined mag 4.17V. 6487 1D: B, 14.0v at 15"; C, 12.5 at 37". 6488 1D: dF7, compound multiple, separation 0.100". Measured separation 0.069" on 1985.5 by speckle interferometry. 6491 1D: F0V, compound multiple. 6500 1D: Companion K0III, optical. 6510 1D: Companion K0IV, optical. 6516 1D: 6.00 G8IV-V, 6.10 G8IV-V, 46.4y, a = 1.02". Combined mag, colors. 6524 1D: Separation 0.098". Seen double 1911 and 1923, elongated 1918, single 1957 and 1959, and unresolved by speckle interferometry 6524 2D: 1976. 6535 1D: Component B, B9V; C, B8V. 6548 1D: Component B, 7.81V, +0.30(B-V), +0.05(U-B), A8IV, vsini 129k/s. Fixed separation from A. 6554 1D: Binary with HR 6555. 6555 1D: Binary with HR 6554. 6556 1D: A* 2.08 A5III, 8.5y, a = 0.065". Resolved by speckle interferometry. 6559 1D: Companion, 9.53V, +0.36(B-V), -0.02(U-B), F6IV-V, compound multiple. 6560 1D: Measured separation 0.140" on 1985.5 by speckle interferometry. 6561 1D: Visual companion optical. 6565 1D: 7.3 F5, 7.6, 101.3y, a = 0.653". Combined mag, colors. 6573 1D: AB 5.34 G0V, 7.95 K3V, 76.00y, a = 1.52". Combined mag, colors. Third component 10v dM1 at 740" compound multiple. 6575 1D: Component B, F4IV compound multiple. 6592 1D: Component B, F4V compound multiple. 6593 1D: Suspected occultation double. 6594 1D: AB 5.58 F4V, 11.1, 122.68y, a = 1.004". Component C, 12.8v at 155" compound multiple. 6595 1D: Separation 0.02", but duplicity uncertain. 6596 1D: Visual companion compound multiple. 6597 1D: Separation 0.111". 6603 1D: Possibly close double. 6609 1D: compound multiple with HR 6610. Combined colors. mag for blend 5.59V. 6610 1D: compound multiple with HR 6609. 6611 1D: Visual companion ADS 10749B, optical. 6613 1D: 7.1 B9, 7.3, 34.00y, a = 0.157". Combined mag, color. 6623 1D: BC 10.3 dM4, 10.8, 43.20y, a = 1.360". This close pair forms a wider physical binary with component A. 6626 1D: Component B, 9.70V, +0.75(B-V), +0.19(U-B), F5V, binary. Component C mag diff 5.36v at 70" from A. 6627 1D: Binary. 6636 1D: compound multiple with HR 6637, not shared with components C,D. 6637 1D: compound multiple with HR 6636. 6645 1D: Companion A0IV. Fixed separation 6657 1D: 6.9, 6.9v, 160.759y, a = 0.37". 6658 1D: Binary. 6665 1D: AB binary. C, 13v at 28" and D, 10v at 95" both optical. 6676 1D: Speckle interferometry separation 0.102". 6681 1D: AB compound multiple; C, 12v at 34" optical. 6691 1D: Companion F0. 6692 1D: Doubtful double, 6.3, 7.3v, separation 0.3". 6693 1D: Fixed with HR 6694. mag and colors combined light, 4.98V, +1.63(B-V), +1.52(U-B). 6694 1D: Fixed with HR 6693. 6697 1D: Separation 0.107". Closed from 0.114" to 0.065" between 1981.5 and 1984.3 (McAlister and Hartkopf). However, speckle 6697 2D: observations 1986.44 (Blazit et al. 1987, A&AS, 71, 57) yield 0.085". 6704 1D: Suspected occultation double. 6714 1D: Component B, 13.7v F? at 7", optical. AC fixed. C, 8.12V, -0.02(B-V), -0.57(U-B), B1V, vsini 130k/s. 6723 1D: Binary. 6729 1D: Binary with 6730. 6730 1D: Binary with 6729. 6733 1D: Binary with HR 6734, q.v. 6734 1D: AB 5.24 F2, 5.94 F3, 280.03y, a = 1.494". Component B is HR 6733. Color for combined light. Spectrum for combined 6734 2D: light, F4IV. C, 11.28V, +0.78(B-V), +0.33(U-B) at 100", optical? 6737 1D: AB compound multiple. C, 13v at 55" optical. 6742 1D: ADS 11029A is speckle interferometric double, separation 0.116". Visual companions, 13.5v at 33" and 13.5v at 48". 6749 1D: AB 5.7 A5V, 5.7 A5V, 191.23y, a = 1.063". Component B is HR 6750. Color for combined light. Combined mag 4.95V. 6750 1D: Binary with HR 6749, q.v. 6752 1D: AB 4.20 K0V, 5.99 K4V, 88.13y, a = 4.545". B is 6.00V, +1.15(B-V), vsini =<25k/s. Aitken listed 9 additional faint 6752 2D: companions within 180". 6753 1D: Both companions optical. 6758 1D: AB binary. B = HD 165474, 7.45V, +0.30(B-V), +0.17(U-B), A7pCrEu:Sr: or A8p (beta CrB), vsini 12k/s. 6759 1D: Component B, B9V, optical? 6766 1D: 5.1, 5.9, separation 0.26", doubtful duplicity. 6771 1D: Discordance in designations of components between ADS and IDS. We accept IDS. Component B, in notes to ADS 11076 not 6771 2D: assigned letter: doubtful, separation 0.1" if real. C, 14v at 25" compound multiple. D = ADS C, 11v at 54" optical. 6773 1D: Visual companion is blue. 6775 1D: AB 5.10 F7V, 8.50 K4V, 55.8y, a = 1.00". 6776 1D: Optical. 6780 1D: Binary. Combined mag, colors. Component B is F0IV or F0V. 6781 1D: Binary with HR 6782. Primary is speckle binary, separation 0.106". Component C, 11v at 76". A companion to A at 0.106" 6781 2D: discovered by speckle interferometry. 6782 1D: Binary with HR 6781. 6787 1D: Companion A6V, optical. 6795 1D: AB 6.07 F2V, 7.03, 270.0y, a = 1.16". 6796 1D: Companion not confirmed. 6798 1D: AB visual double, A4V, F0, combined mag, color. Third component found by lunar occultation, 1.3B, 0.9R fainter than B, 6798 2D: separation 0.024". 6801 1D: Companion, 11.52V, +0.66(B-V), +0.11(U-B), F8V: 6803 1D: 6.5 A, 7.2 F2, 3040y, a = 1.500". 6805 1D: compound multiple. 6809 1D: Binary with HR 6810. 6810 1D: Binary with HR 6809. Faint component C at 221". 6812 1D: ADS 11169A is SB, 4.1, 7.0v, separation 0.011". Closest visual companion is B, 11.5v, B9III at 17"; C is 13.5v at 26"; 6812 2D: D, 9.9v, B3; E, 9.4v, B2V, physical, vsini 184k/s. 6814 1D: AB measured separation 0.102" on 1985.5 by speckle interferometry. 6823 1D: Companion A3V. 6825 1D: Double may be spurious: companion not seen in 1934. 6833 1D: B, 9.68V at 39"; CD, 8.7, 10.2v, separation 16.5". 6841 1D: Companion A3V, optical? 6848 1D: AB binary. C, 8.0v B0.5Ib at 18", vsini 42k/s. 6849 1D: Three faint companions form compact group at about 95". 6855 1D: Primary of visual double and a suspected astrometric binary. 6857 1D: Optical. 6866 1D: ADS 11271B, 12.08V, +1.08(B-V), +0.50(U-B). May have close fainter white dwarf companion. 6896 1D: Companion is A5:. 6898 1D: 6.8 F6III, 7.0 A7IV, 240y, a = 0.59". Combined mag, colors. 6901 1D: ADS 11320B, 12.9v at 17", compound multiple. 6904 1D: AB 6.5 A2V, 7.5 A4V, 775y, a = .90". 6909 1D: Combined spectrum A5; component B, A8V:. 6918 1D: AB physical. B is F5V, vsini =<54k/s. Component P, vsini 80:k/s. 6920 1D: 4.4, 6.1v, 271.7y, a = 0.392". 6923 1D: AB binary with slow orbital motion. Combined mag, colors. B is A5p, vsini 80k/s. C, 7.1v F6V at 90" compound multiple. Some 6923 2D: discordance whether B or C is the brighter. 6924 1D: B, 12.6v at 6". Possibly compound multiple and common RV with HD 170051, 6.9v B5 at 185". 6927 1D: A* 3.57 F7V, 0.768y, a = 0.124". Masses 1.5 and 1.1 Suns. Shortest known period for astrometric binary. Speckle 6927 2D: interferometry indicates component A is binary, separation about 0.1". B, 12v K1V at 149"; C, 13.5v at 10". 6936 1D: AB, compound multiple. 6941 1D: Primary is speckle binary, separation 0.149". Component B, 11.8v, A7Vp; C, 12.8v, F5V, optical; D, 12.9v, F8V. A fifth 6941 2D: companion at 0.149" from A discovered by speckle interferometry. 6944 1D: Binary. 6946 1D: compound multiple companion A0V. 6952 1D: compound multiple with HR 6953. 6953 1D: compound multiple with HR 6952. 6966 1D: Suspected binary probably single star. 6967 1D: Companion optical. 6980 1D: 6.3 G9III, 6.5 G7III, 210.9y, a = 0.416" or 190.8y, a = 0.418". Combined mag, colors. 6981 1D: AB 6.8 G2V, 7.0 G2V, 292y, a = 1.358", or 3083y, a = 6.7811". 6983 1D: AB 6.1 K0III, 6.1 G9III, 169.50y, a = 0.243" or 184.6y, a = 0.255". Component C, 8.8v at 26" physical. 6987 1D: Primary is speckle binary, separation 0.141"; both ADS companions optical. 6988 1D: Possible binary listed by D. W. Dunham, 6.5, 6.5, separation 0.1". 6989 1D: AB, fixed separation 6999 1D: AB 7.2 F9V, 7.3 F9V, separation 0.13", 12.18y, a = 0.196". Measured separation 0.141" on 1985.5 by speckle interferometry. Third 6999 2D: component 14v, optical. 7001 1D: Companions in IDS optical. BD=+38d3231, 8.6v, 23' N. prec., may be compound multiple. 7002 1D: Var. MBE+K1III, 8.8, 485.3y, a = 0.34". Masses A, 15.9; B, 5.0 solar. 7007 1D: Optical. 7010 1D: Companions probably optical. C at 108" may be brighter than B. 7017 1D: Separation 0.14" by Couteau; 0.175" by McAlister et al. from speckle interferometry. 7020 1D: Component B, 10v, gK, optical. AC, compound multiple? A may be close binary, about 10d orbital period. 7021 1D: Component B, K0. 7023 1D: Occultation double. 7031 1D: Listed as double by Innes but probably not. 7033 1D: AB fixed, B at 25", 8.05V, -0.05(B-V), -0.25(U-B), B8V, vsini 150k/s. AP, measured separation 0.145 on 1985.5 by speckle 7033 2D: interferometry. 7035 1D: Duplicity questionable. 7039 1D: 4.1, 4.1v, separation 0.13", doubtful. 7048 1D: ADS 11640AB, >5600y. Both components close binaries. Speckle interferometry 1985.5 gives separation Aa = 0.141"; 7048 2D: Bb = 0.137". 7051 1D: AB 5.00 A2n, 6.10 A4n, 1165.6y, a = 2.78". Binary with HR 7052 = B, and compound multiple with HR 7053-4 at 208". Combined mag 7051 2D: and colors for HR 7051-2 are 6.48V, +0.19(B-V), +0.04(U-B). 7052 1D: See HR 7051. 7053 1D: CD 5.23 A3n, 5.47 A5, 585y, a = 2.95". Component C is speckle binary, separation 0.184". 7054 1D: See HR 7053. 7055 1D: Fixed separation 7056 1D: compound multiple with HR 7057 = ADS 11639D. Other components optical. 7057 1D: compound multiple with HR 7056. 7059 1D: AB binary, B, Am, F3Vm, or Am(A5/F1/F2), RV +9.2k/s, vsini =<25k/s. C, 11.3v optical. 7061 1D: All companions probably optical. 7077 1D: Suspected occultation double. 7083 1D: B, 12.5v at 23"; C, 8.14V, +1.05(B-V), +0.75(U-B), K0II-III. 7099 1D: Binary, companion K3III-IV. 7100 1D: B, 10.89V, +1.05(B-V), +0.76(U-B), at 35"; C is G0V. 7106 1D: AB fixed. B is 8.6v, B7v; may be collapsed star; vsini 120k/s. E, 9.9v A8pSr or B9V at 67" optical? F, 9.9v A8-9V or 7106 2D: or B9V at 86". A, B, E and F are compound multiple. 7116 1D: AB fixed, combined mag, colors. C, 11.21V, +1.25(B-V), +1.20(U-B), at 28". 7121 1D: Interferometer measures indicate multiple star. 7125 1D: B is K3IIIp optical, vsini =<54k/s. C, 11.5v at 139" is receding from A. 7133 1D: C, 11v at 38" optical. 7140 1D: ABC fixed. B, 10.2v at 2". C, 7.69V, -0.08(B-V), -0.28(U-B), variously classified B8V, B9.5IV, A2, F3. 7141 1D: Binary with HR 7142. 7142 1D: Binary with HR 7141. 7154 1D: AB observed as single round image in 1974. 7155 1D: Suspected occultation double, equal components. 7161 1D: 6.6 F8V, 6.6 G0, 13.58y, a = 0.131". 7162 1D: AB 5.36 G0V, 7.46 K1V, 61.203y, a = 1.24". Combined mag, color. Components C, D, optical. 7164 1D: Suspected occultation double. 7165 1D: Companion blue star? 7166 1D: Binary. B1, B9. 7169 1D: compound multiple with HR 7170. Combined mag 5.82V, -0.03(B-V). 7170 1D: compound multiple with HR 7169. 7172 1D: Both companions optical. 7178 1D: B, 12.1v at 13", optical. 7179 1D: Companion 9.80V, +0.21(B-V), +0.07(U-B), A5V fixed. 7184 1D: 6.9 A1V, 7.2 A3V, 259.07y, a = 0.601". Combined mag 7191 1D: AB compound multiple. B is G8V. 7194 1D: AB 3.2 A2III, 3.4 A2V, 21.138y, a = 0.532". 7195 1D: Suspected occultation double with equal components; combined mag, color. 7199 1D: vsini of secondary 150k/s. 7203 1D: AB compound multiple. B, 9.17V, +0.47(B-V), +0.09(U-B). 7205 1D: Probable double, 7.1, 7.1v, separation 0.05". 7209 1D: Separation 0.099". Consistently unresolved by speckle observations at five epochs between 1977.48 and 1981.47 (McAlister 7209 2D: and Hartkopf). 7215 1D: B, 10v at 44" optical. 7225 1D: Companion gK4, optical. 7226 1D: AB 4.84 F8V, 5.08 F8V, 120.42y, a = 1.907". B is HR 7227. Combined mag and colors, 4.205V, +0.52(B-V), +0.00(U-B). 7226 2D: vsini for blend 0k/s. 7227 1D: See HR 7226. 7229 1D: AxBC binary, BC 9.2, 9.8, 138y, a = 0.195". 7239 1D: Companion A0V. 7261 1D: AB binary. Other companions probably optical. 7262 1D: Resolved by speckle interferometry 1986.45, separation 0.08". 7262 1D: Resolved by speckle interferometry 1986.45, separation 0.08". 7264 1D: AB, combined mag, colors, separation 0.093". Third component 6.0v at 0.4". 7265 1D: 7.0 K3III, 7.2 K2III. Unresolved by speckle interferometry. Probably not double. 7272 1D: AB binary, B is G5. Speckle interferometry indicates a fourth companion at 0.089" from A. 7278 1D: 6.1 A2N, 6.5, 157y, a = 0.56". 7285 1D: B, 8.0v at 0.7" compound multiple. C is G5. 7287 1D: Companion optical. 7292 1D: 5.5 F8V, 5.7 F9V, 18.75y, a = 0.153". Component A is SB, 6.2, 6.2v, separation 0.001". 7293 1D: Binary with HR 7294. C, 12.7v at 56" optical. 7294 1D: See HR 7293. 7298 1D: B is A0, optical. 7300 1D: Binary. Companion A1V. 7304 1D: Suspected occultation double. 7305 1D: AB binary. C, 10.1v at 48" from A; D at 50", mag diff 5.54V. 7307 1D: AB compound multiple, B is 9.07V, +0.14(B-V), -0.05(U-B), F8V or G0IV, optical? Speckle interferometry indicates a fourth companion 7307 2D: at 0.051" from A. 7311 1D: AB, compound multiple. 7318 1D: AB binary. 7319 1D: AB binary. C, 13.7v at 12" optical. 7333 1D: B probably optical. 7337 1D: compound multiple. Companion A5V; vsini 129k/s, optical? 7339 1D: Component B, K2IV, RV -3; component C, G5:III, optical. 7340 1D: Separation 0.036". Questionable occultation double. 7360 1D: Optical. 7362 1D: 5.8 A8, 5.8 A6-F0, 10.8y, a = 0.123". Probable occultation double. Speckle interferometry 1985.5 gives separation 0.081". 7370 1D: AB, compound multiple. 7373 1D: Unresolved by speckle interferometry 1986.46. 7377 1D: Component A astrometric binary, A* 3.36 F0IV, 3.422y, a = 0.058"; unresolved by speckle interferometry. 7385 1D: Both companions optical. 7386 1D: Components B-D are 40" to 90" from A. A new component at 0.181" found by speckle interferometry. 7387 1D: Colors of B are +0.31(B-V), +0.16(U-B). 7391 1D: Components B, 10.8v at 27"; C, 10.46V, +0.61(B-V), +0.08(U-B), at 73" and P, 14.5v at 26" all optical. 7398 1D: Binary. B, 8.69V, +0.86(B-V), +0.32(U-B), G1IV-V. 7402 1D: AB fixed. C, 7v at 2", binary. 7405 1D: Secondary K0. 7412 1D: B, optical. 7417 1D: 7270.2y, a = 62.90". Binary with HR 7418. vsini of B-type component of ADS 12540A 50:k/s. Component C, 11v at 50". 7417 2D: Two additional components of A resolved by speckle interferometry: Aa 1981.70, separation 0.42"; Ap 1978.41, separation 0.12" and 7417 3D: 1979.46, separation <0.08". 7418 1D: See HR 7417. Unresolved by speckle interferometry 1981.47, separation <0.03". 7429 1D: B and C optical. 7440 1D: compound multiple. 7441 1D: Visual companion compound multiple. 7448 1D: Fixed. Companion K0III. 7463 1D: B is B8, optical. 7466 1D: AP, separation 0.1" unresolved by speckle interferometry at eight epochs between 1976.45 and 1981.70 (McAlister and Hartkopf). 7469 1D: AB compound multiple. B, 13v at 3". C, optical. 7470 1D: Separation 0.200". 7474 1D: B, 12v K0Ve at 48" optical. C, 12v at 130". Rotational velocity of A 123k/s, of B 142k/s. 7475 1D: compound multiple companion B3V. 7476 1D: Primary is close double, combined colors. mag for blend 5.30V. Component B, 12.6v at 38" optical. C, 8.9 F8V 7476 2D: at 46" physical. 7478 1D: 1.188y, a = 0.026". 7479 1D: Companions B and C optical. 7480 1D: A companion at 0.084" discovered by speckle interferometry. 7481 1D: AB binary. 7485 1D: Companions probably optical. 7486 1D: Speckle interferometry 1985.5 gives separation 0.178". 7489 1D: Suspected visual double, but may be single. 7497 1D: AB, fixed separation 7503 1D: Binary with HR 7504. Third component mag diff 7.17V, separation 70" from A. 7504 1D: See HR 7503. 7528 1D: AB 2.91 B9.5III, 6.33 F1V, 827.6y, a = 3.20". 7529 1D: AB binary. B is 7.16V, +0.02(B-V), -0.07(U-B), B9.5V, vsini 250k/s. 7530 1D: Component B, 8.56V, +0.05(B-V), +0.11(U-B), A2V at 39". 7534 1D: AB binary. B is dK6. Component C, optical. ADS 12913AB and ADS 12889 (9.2, 9.4 dK5 separation 3") at 792" are compound multiple and have 7534 2D: same RV and parallax. ADS 12889, 259y, a = 2.27", mean mass 0.6 solar. 7535 1D: B, 13v at 3" binary with A. C, 14v at 10" binary with A. D, optical. 7536 1D: Suspected visual double probably single image, composite spectrum. Secondary either B6 or A0V. 7538 1D: 6.1, 11.9v separation 2" in 1910, 1913, not seen as double in 1926, 1928, 1929. Probably single? 7544 1D: AB, >3000y. 7546 1D: AB 5.5 A1V, 6.2 A3V, 22.8y, a = 0.146". Masses 4.0, 2.0 solar. C, 8.7v at 8" physical. Speckle interferometry 1985.5 7546 2D: gives separation 0.180". 7548 1D: compound multiple with HR 7549. 7549 1D: compound multiple with HR 7548. 7550 1D: 7.2 F5V, 7.7 F7V, 156.52y, a = 0.624" or 157.21y, a = 0.607". Combined mag, colors. 7553 1D: Optical. 7557 1D: Component B optical. 7560 1D: Component B optical. AC, 13.8 dM4, 22" binary. 7566 1D: Component B, optical. 7571 1D: Speckle interferometry indicates companion at 0.291", probably not the same as the SB or occultation binary. 7572 1D: Component B = A3V. 7578 1D: Optical. 7582 1D: Binary, companion K5III (AJ, 82, 431, 1977). However, Buscombe points out that the companion is F6V and this is more 7582 2D: consistent with the magnitude difference between the components, if physical. 7593 1D: compound multiple with HR 7594. 7594 1D: compound multiple with HR 7593. 7598 1D: Optical. 7599 1D: Speckle interferometry 1985.5 gives separation 0.173". 7602 1D: AB binary. B 12v dM3 at 13". 7615 1D: AB compound multiple. B, 12v at 7". Other components optical. 7619 1D: AB combined mag, colors. Sources differ on spectral class of component B from A7V to F4V. vsini of B, 120k/s. 7638 1D: AB and AC binary. C, 9.0v Am(A2/A8/A8) at 3", physical. 7658 1D: Suspected occultation double. 7670 1D: Companion 16.4pgM6, compound multiple. 7671 1D: Discovered as double by W. Herschel; companion not rediscovered. 7678 1D: Optical companion, +0.74(B-V), +0.34(U-B). 7680 1D: compound multiple. 7683 1D: B, 13.2v at 12", optical. C, 12.5v at 40". 7689 1D: AD compound multiple. B, 13.7v at 23"; C, 11.6v at 36". 7693 1D: Binary. 7703 1D: AB compound multiple. B, 11v dM5, separation 6.6". Wroclaw contr. no. 16 gives mag differences but no separation for four components: AB 5.4v, 7703 2D: AC 5.15, and AD 4.0. Possible misidentification? Discovered by John Herschel as simply double. Components C and D 7703 3D: apparently first listed by van Albada at Lembang in 1958; only magnitudes and no separations were indicated. 7705 1D: AB binary. B, 8.7v at 13". C, optical. 7717 1D: Discordance as to which component has the peculiar spectrum usually attributed to A. However, on the basis of better 7717 2D: spectrograms, Abt gives A = A0V, B = A0Vp(Sr,Cr st.,Ca wk.). 7723 1D: Binary. 7726 1D: AB compound multiple. 7730 1D: Component D of ADS 13554 of which primary is HR 7735. 7735 1D: Component C, 6.99V, -0.14(B-V), -0.58(U-B) B5V, vsini : 25k/s, at 107" fixed. AP probably single star. 7736 1D: B is K1III, optical, vsini =<54k/s. 7737 1D: AB and AC both binary. C, 9v at 12". 7739 1D: AB compound multiple, 680?y. 7743 1D: compound multiple. 7747 1D: See note for HR 7754. ADS 13632B, 14v at 44"; C, 9.6v K5III, at 45" physical, vsini =<54k/s. D, 14.3v at 29" from C. 7754 1D: IDS notes Alpha1 Cap = HR 7747 (ADS 13632, four components) as one of five components of Alpha2 Cap = HR 7754 2D: 7754 = ADS 13645. Hence, we have recorded n = 9 for both. ADS 13645AB optical; BC 11.2, 11.5v, separation 1.2" binary. 7764 1D: Component C, photometric spectral class A2IV, vsini 53k/s. Component B, 10.1V at 4.1". For component AB, Rakos and 7764 2D: Mermilliod give 6.93V, +0.28(B-V), +0.24(U-B). However, other sources give the following V magnitudes: 7764 3D: Comp. 1976 1978 1980 Preferred 7764 4D: Gronbech and Oblak Ruffener 7764 5D: Olsen 7764 6D: AB 6.635 6.610 6.608 6.61 7764 7D: C 7.724 7.706 7.72 7764 8D: Colors converted from the uvby system (Gronbech and Olsen) are AB +0.13(B-V), +0.185(U-B); C +0.165(B-V), +0.14(U-B). 7767 1D: AB binary. C, at 34", 11.11V, +0.19(B-V), -0.29(U-B), B7Vp:, vsini 340k/s. D at about 45", 11.17V, +0.19(B-V), 7767 2D: -0.32(U-B), B8Vp:, physical, vsini 279k/s. Primary is speckle binary, separation 0.047". 7773 1D: compound multiple. 7775 1D: Complex system with HR 7776, compound multiple at 205". ADS 13717A is occultation double, 6.2 - 8.3v, separation 0.8"; also 7.2, 7.2v, 7775 2D: separation 0.05". Component B, 10.2v, A1, binary with A at 0.9". A is astrometric binary. The close occultation pair is 7775 3D: questioned; it has not been confirmed by speckle interferometry. 7776 1D: Complex system with HR 7775, q.v. Component B, vsini 97k/s. Occultations indicate component A is multiple system: 4.0, 7776 2D: 4.3v separation 0.0002", 4.8v at 0.022" and 6.7v at 0.0001". A also suspected astrometric binary, 3.07 F8V. Possibly also 7776 3D: two faint 13v components at 112" discovered by John Herschel. 7781 1D: AB binary. B is dF3. 7784 1D: AB 6.33 A2V, 8.87 F6V, 69.86y, a = 0.2766" or 90y, a = 0.214". Component C, 9.2v at 3" also binary with AB. 7787 1D: AB binary. Combined mag, colors. 7790 1D: BC, 9.2, 10.2v separation 17.6". 7792 1D: ADS 12214, 18.75y, a = 0.153". 7802 1D: AB binary. B, 11v at 1.3". C and D optical. 7803 1D: Discordances as to which component is B, which C. IDS gives B, 13.1v at 17.1". 7805 1D: compound multiple. 7808 1D: 6.6 K2IV-V, 7.8 K1V, 232.76y, a = 1.225". 7814 1D: AB compound multiple. 7818 1D: 7.1 A3V, 7.4 A5V, 83.72y, a = 0.172". 7822 1D: AB binary. B, 8.0v at 0.8". 7827 1D: compound multiple. Secondary, A2V, vsini 75k/s. 7829 1D: compound multiple with HR 7830. 7830 1D: compound multiple with HR 7829. 7836 1D: AB binary. 7837 1D: Also observed as occultation double, 6.6, 7.4v, separation 0.1". 7840 1D: BC 7.5, 7.6v, Am, measured separation 0.108" on 1985.5 by speckle interferometry, vsini 63k/s. A, optical, with companion, 7840 2D: measured separation 1985.5 Aa = 0.341" by speckle interferometry. 7844 1D: Component B, 12.9v A5V at 18", optical. 7845 1D: AB, compound multiple. B, 11.3v at 3". 7849 1D: Binary. B is A2. 7864 1D: compound multiple. Companion G5V. 7866 1D: AB separation 0.1", no magnitudes cited. Both 2 micron IR and UV sources. 7882 1D: AB 4.0 F5IV, 4.9 F5IV, 26.65y, a = 0.475" or 26.60y, a = 0.480". Speckle interferometry gives separation 0.58" and with SB 7882 2D: data leads to masses 2.2 and 1.8 solar. Combined mag, colors. Components C-E optical. 7884 1D: Optical. 7885 1D: Double with HR 7887 at 181". Third component 12.9v at 71". 7887 1D: Double with HR 7885. 7889 1D: AB 5.8 B6III, 6.3 B6IV, 200y, a = 0.31". Visual third component 13v at 159". Occultation fourth companion, 9.3V, separation 7889 2D: 0.052". 7896 1D: AB optical. B, 11.8v at 29". AC compound multiple, C is K2IV. 7897 1D: Both companions optical. 7899 1D: AB optical. B, 13v at 7". 7906 1D: Companions optical. 7908 1D: B is BD+80d662, 8.71V, +0.63(B-V), +0.00(U-B), F8V, compound multiple. 7911 1D: AB binary. C, 8.5v A0 at 69" compound multiple. 7917 1D: Binary. 7921 1D: AB binary. 7929 1D: AB fixed. 7947 1D: 3249y, a = 13.813". Binary with HR 7948. 7948 1D: See HR 7947. 7949 1D: AB optical. C, 13v at 78" compound multiple. 7955 1D: B is BD+57d2241, optical. 7956 1D: AB compound multiple. B, 10.03V, +1.27(B-V), +0.66(U-B). C, 13v at 14" optical. 7959 1D: Binary with HR 7960. mag and colors for combined light, 5.67V, +0.16(B-V), +0.07(U-B). 7960 1D: See HR 7959. 7963 1D: AB 4.85 B5V, 6.07 B7V, 391.30y, a = 0.777". Combined colors. mag of blend 4.52V. Component C, 9v K2III-IV at 84", 7963 2D: optical; vsini =<54k/s. Resolved by speckle interferometry 1986.45, separation 0.87". 7972 1D: Companion optical. 7977 1D: Optical. 7978 1D: B8V+A3V. compound multiple. 7982 1D: AB 6.4 F5V, 7.22 F8V, 187y, a = 0.855". mag, colors for combined light. 7989 1D: compound multiple. G8III-IV + G2.5IV. 8009 1D: Fixed separation 8010 1D: Binary. 8012 1D: Optical. 8015 1D: AB fixed separation B, 11.8v at 36". 8017 1D: AB, compound multiple. 8025 1D: Binary. 8034 1D: AB 6.0 F5IV, 6.3 F7IV, 101.485y, a = 0.647". Combined mag, colors. Component C, 7.2v G0V at 11", compound multiple. 8038 1D: 6.3 A5V, 7.6 F4V, 52.5y, a = 0.27". 8040 1D: AB binary. 8042 1D: compound multiple? Companion K0IV. 8047 1D: AB compound multiple. B, 9.38V, +0.22(B-V), +0.04(U-B) A8III, vsini 97k/s. Component C, 12v at 26" optical. 8050 1D: Separation 0.110". 8056 1D: AB 6.74 F5, 7.21, 3055y, a = 3.740". 8058 1D: compound multiple with HR 8059. 8059 1D: compound multiple with HR 8058. Colors for combined light. mag for blend 5.54V. Measured separation Aa 1985.5 0.045" by speckle 8059 2D: interferometry. 8061 1D: Duplicity of AB uncertain; separation 0.110"? 8064 1D: AB, combined mag, colors. CE optical. 8071 1D: AB compound multiple. 8079 1D: 9.1v A2 companion. 8085 1D: AB 5.22 K5V, 6.04 K7V, 722y, a = 24.65". B is HR 8086. Aa x P, 4.9y, a = 0.014". Astrometric measures indicate 3 8085 2D: invisible companions, periods 6, 7 and 12y. Unresolved by speckle interferometry. Suspected planetary companion not 8085 3D: substantiated. 8086 1D: See HR 8085. 8094 1D: AB binary. B, 7.8v A0V or Am(A2.5/A7V/A9), vsini 80k/s. C, 9.2v K1III at 58" optical, vsini =<54k/s. 8097 1D: AB binary, B, 11.6v at 2". C, 12.6v at 48" optical. 8101 1D: Fixed. Companion A4V. 8105 1D: Companion B8V. 8107 1D: AB fixed. B, 9.6v at 1.2". C, 7.29V, +1.55(B-V), +1.38(U-B), M5III, vsini =<25k/s. 8114 1D: 6.5 A7V, 6.5 A7V, 17y, a = 0.11". Combined mag, color. 8115 1D: White dwarf companion. 8116 1D: 7.0 A7V, 7.0 A7V, 34.44y, a = 0.227". Combined mag, colors. Measured separation 0.090" on 1985.5 by speckle interferometry. 8119 1D: AB binary. B, 7v at 1". 8123 1D: AB 5.2 F7V, 5.3 F7V, 5.70y, a = 0.26". Combined mag, colors. Component C, 9.5v at 48" optical. 8130 1D: AB 3.82 F0IV, 6.42 G1V, 49.80y, a = 0.85". Components C, 13v at 29" and P, 12v at 72", both optical. Q, 12v at 90", 8130 1D: physical. R, 13v at 90", compound multiple. 8131 1D: Separation 0.08". May be only single star. 8133 1D: 7.0 G2IV, 7.2 G2IV, 84.4y, a = 0.61". Combined mag, colors. 8140 1D: Companion A7V or G0V. 8146 1D: AB compound multiple; 79000?y. Component B, 10.0v G8.5V, probably optical. 8148 1D: AB binary. B is K4. Components D and E, 12v at 247" and 149" probably optical. 8153 1D: AB fixed. 8157 1D: Binary, separation 0.130", about 30y. Unresolved by speckle interferometry. 8164 1D: AB binary. B is B3V. 8166 1D: AB binary. Component B, G5IV. 8173 1D: AB compound multiple. Companion K0V. 8178 1D: Companions optical. 8189 1D: Component B of which primary is HR 8193. 8193 1D: Component A in system of which B is HR 8189. Other components 11.6, 13.4, 14.6v. 8194 1D: ADS 14943A. All companions 10.5m or fainter. 8209 1D: ADS 14969A. Companions optical. B 12.06V, +1.13(B-V), 33". C 10.38V, +0.46(B-V), -0.04(U-B), F5V, 54", vsini =<54k/s. 8209 2D: Components B and C sometimes interchanged. 8224 1D: Optical. 8232 1D: Both companions optical. 8238 1D: ADS 15032AB, 50y. B, 7.84V, +0.18(B-V), +0.06(U-B), A2.5V, vsini 60:k/s. Third component discovered by speckle 8238 2D: interferometry, mag diff about 4v. Separation 0.025". Possible circumstellar material. 8254 1D: A* 3.76 K0III, 2.84y, a = 0.052". 8258 1D: 6.7 A2V, 7.0 A4V, 173.9y, a = 0.293". Combined mag A third component is suspected. 8260 1D: Component A is SB, 5.0, 6.3v, 0.0047"; component B, 9.5v K1III-IV: at 68", physical, vsini =<54k/s. 8263 1D: compound multiple. 8264 1D: Speckle interferometry indicates mag diff 3.0, separation 0.033"; D. W. Dunham gives 5.1, 7.1v, 0.07". 8265 1D: AB compound multiple. B is 7.65V, +0.37(B-V), -0.01(U-B), F2V; vsini 30k/s. 8270 1D: Optical. 8280 1D: Binary. Companion A3. 8281 1D: AC fixed. C, 8.05V, +0.23(B-V), -0.68(U-B), B1.5V at 12", vsini 80k/s. AD also fixed. D, 8.03V, +0.20(B-V), -0.72(U-B), 8281 2D: B2IV at 20", vsini 270k/s. In earlier sources C is brighter than D. 8284 1D: AB binary. B, 10.5v at 3". Component C, optical. 8285 1D: compound multiple. 8294 1D: Suspected occultation double. 8295 1D: Suspected occultation double. 8300 1D: 6.4 B9.5V, 6.6 A0V, 27.2y, a = 0.16". ADS 15251 8.3, 8.3, 11.9m at 2' may be member of same system. 8307 1D: AB compound multiple. B is A0. AP, 5.6 11.0v separation 1.5" binary. 8308 1D: ADS 15268AB optical. 8309 1D: AB 4.78 F4V, 6.09 G2V, 507.5y, a = 4.278". B is HR 8310. Combined colors. mag for blend 4.50V. Components C, D, 8309 2D: optical. D, at 201" is ADS 15275, 6.9 A5, 13.3v separation 16". 8310 1D: See HR 8309. 8315 1D: AB 4.7 F2IV, 5.0 F6IV, 11.558y, a = 0.255". ADS 15281C, 10.8v at 13.8" possibly in hyperbolic orbit about AB or is 8315 2D: optical. 8322 1D: ADS 15314A. Component A is SB, 3.2, 5.2v, 0.0018"; B, 15.8v, 69"; C 12.7v, 120". 8326 1D: Separation 0.102". 8344 1D: 5.5 F2, 7.5, 29.0y, a = 0.396"; previous orbits 37.594y, a = 0.433" and 27.508y, a = 0.387". 8348 1D: Both components optical. 8352 1D: 6.6 F0IV, 6.7 F0IV, 27.5y, a = 0.240". Combined mag, color. 8355 1D: Occultation third component 8.8v at 0.02"; AB, separation 0.114" by Finsen, 0.090-0.093" by speckle interferometry. 8357 1D: AB compound multiple. B is A1p Sr Si, vsini 60k/s. C, 13.2v at 55". 8361 1D: Component B Am(A2/A6/F2). 8363 1D: Optical. 8364 1D: AB compound multiple. Companion F7V. 8368 1D: 5.1 F0IV, 5.1 F0IV, 6.094y, a = 0.127", or 12.242y, a = 0.160". Combined mag, colors. 8383 1D: A* var. M2Iab, B6IIe. Combined mag, colors. Absolute magnitudes based on astrometric and spectroscopic data are 8383 2D: -4.0V for red component, -2.3 for the blue. 8384 1D: Companion HD 208971, 7.0, K5III-IV, probably optical. 8396 1D: Component B, 7.2v, at 3.7" variously classified G2V, G2III:, K0III:; C 11.7v at 143". 8400 1D: Optical pair? 8407 1D: AB compound multiple. 8417 1D: AB 4.61 A3m, 6.5 F7V or F3III-IV, 3800y, a = 11.5". Aa, 2.254y, a = 0.073". Component B is HD 209791 = GC 30876, 8417 2D: vsini =<25k/s. Component C, 12.7v at 97" optical. 8423 1D: AB binary. 8428 1D: Companions optical: B, 11.6v at 20"; C 10.79V, +1.08(B-V), +0.75(U-B). 8430 1D: Optical. 8449 1D: Components B and C optical. 8463 1D: B and C optical. D, K0, compound multiple. 8472 1D: AB optical. 8474 1D: compound multiple. 8479 1D: Probably single. 8480 1D: AB binary. B is F8V. 8485 1D: B, optical. 8493 1D: compound multiple. Companion A3V. 8502 1D: A* 2.85 K3III, 11.5y, a = 0.049". 8510 1D: AB binary. 8513 1D: AB compound multiple. B, 10.7v A7V at 6"; C, F6IV, optical. 8515 1D: Separation 0.100". 8518 1D: Optical. 8521 1D: Companion G0V. B-V for combined light +2.10. Since 1900 no relative motion of components observed. 8523 1D: Visual companion is optical. 8524 1D: compound multiple. 8530 1D: Suspected occultation double. Unresolved by speckle interferometry. 8532 1D: AB binary. B, 9.2v at 2.5" in 1832; 0.296" by speckle interferometry on 1985.5. 8533 1D: AB 6.6 A0, 6.6, 190y, a = 0.490". Measured separation 0.121" on 1985.5 by speckle interferometry. 8540 1D: compound multiple companion F5III, optical. 8544 1D: Binary with HR 8545. Components C, D, optical. 8545 1D: See HR 8544. Colors for combined light. mag of blend 5.56V. 8548 1D: AB binary. B is K4. 8549 1D: Fixed. 8558 1D: Binary with HR 8559, speckle interferometric separation 1.672" (1982.38). B* 4.51, 12v, 25.5y, a = 0.072". 8559 1D: Binary with HR 8558. AB 4.31 F2IV, 4.51 F3IV, 856.0y, a = 5.055". Magnitude for blend 3.65V, combined colors. 8559 2D: Component B, HR 8558, is an astrometric binary. 8560 1D: Companion optical. B-V for combined light +1.57. 8566 1D: 5.77 F5IV, 7.14 F7IV, 143.0y, a = 0.746" or 140.0y, a = 0.75". Combined mag, colors. 8571 1D: B, 13v at 21" optical. AC compound multiple, C at 41", 6.30V, -0.03(B-V), -0.35(U-B), B7IV, RV -21k/s, vsini 135k/s. 8576 1D: compound multiple. Companion D G2? Photometric data (Oblak 1978, A&AS, 34, 453) give B A2V, 6.22V,; C F2V, 7.71V, +0.38(B-V); 8576 2D: D F9V, 7.83V, +0.51(B-V), where MK types are estimated from uvby,beta photometry. ABD physical, C optical. 8585 1D: Optical. 8595 1D: AB 6.5 dF2, 7.0 A5, 225.6y, a = 0.78", or 785y, a = 2.042". Combined colors; combined mag 6.01V. Combined spectrum 8595 2D: A9III. 8598 1D: AB, compound multiple. 8602 1D: compound multiple. 8603 1D: AB compound multiple. B is 6.46V, -0.14(B-V), -0.82(U-B), B2V, vsini 40k/s. All companions listed by Worley are more than 22" from 8603 2D: A. A new companion at 0.042" discovered by speckle interferometry. 8604 1D: Probably single. 8612 1D: Measured separation 0.136" on 1985.5 by speckle interferometry. 8619 1D: ABC compound multiple. BC 7.3v F6IV, 8.1v separation 3". 8621 1D: Optical. 8622 1D: Companion 10.02V, +0.28(B-V), +0.3(U-B), A6III-IV, vsini 141k/s. 8626 1D: Optical. 8629 1D: AB, 6.4 F8, 7.4 F6, 28.0y, a = 0.17". Speckle interferometric separation 0.184" on 1985.5153. Occultations indicate third 8629 2D: fainter component: separation 0.129", mag diff 2.7v 9 Oct. 1973; single 3 Dec. 1973; and 0.065", mag diff 1.0, 29 Sept. 8629 3D: 1974. Possibly variable with high orbital motion? 8631 1D: AB 6.26 G3V, 6.81 G8V, 20.93y, a = 0.30". Combined mag, colors. Perhaps invisible companion, period 15.8y. ADS 16173C, 8631 2D: 11.6v at 72". Faint compound multiple, 14.9v at 4.5' N. prec. 8635 1D: Binary. B is M1. 8640 1D: B, 9.2A3V, physical, vsini 89k/s. 8645 1D: AB binary. B9, A7. 8650 1D: A* 2.94 G2II-III, 2.23y, a = 0.022". Speckle interferometry measures range from unresolved to separation 0.059". BC, 10.0, 8650 2D: 10.0v separation 0.2" at 90" from A, physical. 8652 1D: BC, 7.6, 9.5v separation 0.15" binary and AxBC binary. 8654 1D: AB binary. B is K2III. C, 12.5v at 11" optical. 8656 1D: Fixed separation 8662 1D: compound multiple, companion G9V. 8665 1D: AB binary. B 12v M1 at 12"; C, optical. 8673 1D: AB optical. 8680 1D: 7.0 F2IV, 7.2 F3IV, 26.9y, a = 0.212". Combined mag, color. 8687 1D: AB binary. B is dF5. A is astrometric binary, 4.3y. C is 10.2v at 111". 8695 1D: Binary, companion F5V. 8696 1D: AB binary. B is G2IV. Combined mag, colors. 8697 1D: compound multiple companion M4. 8699 1D: AB, compound multiple. B, 12.2v at 26". 8704 1D: mag, colors for combined light. Occultation double 6.7, 6.7v separation 0.2"; speckle interferometry, separation 0.076". 8708 1D: AB 5.8 A3VM, 7.8 F6V, 104.5y, a = 0.647", or 102.27y, a = 0.680". Component C, optical. 8716 1D: 120.0y, e 0.68, a 0.47", i 85d, mag diff 2.0. 8720 1D: compound multiple. Companion G3. 8721 1D: compound multiple with HR 8728. 8725 1D: AB relative position of component unchanged in a century. Probably physical. B, 11.5v F0 at 27". C, F5IV, optical, vsini 8725 2D: =<54k/s. 8728 1D: compound multiple with HR 8721. 8734 1D: Separation 0.02", but duplicity uncertain. Unresolved by speckle interferometry. 8737 1D: AB 7.1 G2V, 7.3 G4V, 26.5y, a = 0.39". 8739 1D: 6.1 F0V, 7.4 F6V, 270.13y, a = 0.815". Combined mag, colors. 8753 1D: compound multiple. 8759 1D: Suspected occultation double. 8762 1D: Separate speckle interferometric measures give separation 0.05" (Aa) and 0.34" (AB). Ten years of observations reveal steady 8762 2D: change in AB position angle of about 10d with decrease in separation from about 0.375" to 0.266". Component B 8762 3D: identified as SB2 (see SB remarks), making total number of components at least 4. 8766 1D: AB 5.1 A2, 8.8, 76.6y, a = 0.277". 8768 1D: Fixed. Companion 9.88V, +0.08(B-V), -0.37(U-B), A1V. 8777 1D: Binary questioned. Companion 9.47V, +0.09(B-V), -0.20(U-B), B9V. 8782 1D: AB 6.2 F2Vn, 6.3 F2V, 21.84y, a = 0.200" or 22.0y, a = 0.20". Combined mag, colors. Component C, 84 Aqr, 7.6v K0 at 8782 2D: 262", optical. 8789 1D: Separation 2.9" observed 1925; single in 1929. 8793 1D: compound multiple. Combined mag, color. Companion F8V. 8798 1D: Binary. 8808 1D: Separation 0.180". 8819 1D: AB 4.6 G2III, 6.6 F3V, 150y, a = 0.86". Combined mag, colors. Companion may be collapsed star. 8822 1D: C, 8.14V, +0.15(B-V), -0.38(U-B), A, HD 218780. 8832 1D: Astrometric binary unresolved by speckle interferometry. 8833 1D: Probably optical. 8836 1D: AB, compound multiple. 8841 1D: BC, 10.0, 10.5v, K3V, 130y, a = 0.6", mean mass BC 0.35 solar. BC combined, 9.19V, +1.03(B-V), +0.93(U-B), compound multiple with 8841 2D: A. Component C is a close double, equal components, showing orbital motion. 8858 1D: Suspected occultation double. 8860 1D: AB, compound multiple. B, 13.0v at 8". 8865 1D: AB binary. 8866 1D: AB binary. B is K2V. Component A found double by speckle interferometry. 8868 1D: compound multiple. 8872 1D: AB 4.86 K0III, 7.13 F6V, 796.16y, a = 2.991". 8877 1D: AB 6.04 F6III, 8.89V, +0.61(B-V), +0.08(U-B), G0V. AB compound multiple with C, 8.87v A3 at 17". 8879 1D: Suspected occultation double. 8884 1D: compound multiple. 8890 1D: 5.6 A2V, 6.4 A7V, 63.16y, a = 0.420". 8893 1D: Interferometer double. 8895 1D: compound multiple. Companion A3III, vsini 129k/s. 8911 1D: AB optical. Component A suspected occultation double. 8912 1D: Probably single star. 8926 1D: AB, 4.9, 9.3V, 1500y, separation 1.1". CD, 8.2 A0Vn, 9.8v, separation 1.6"; vsini of C, 210k/s. Component E, optical. 8940 1D: Spectrum binary unresolved by speckle interferometry. 8943 1D: 5.6 K4III, 5.7 K5III, 241.20y, a = 0.447". 8954 1D: Duplicity questionable. 8956 1D: Components K2.5IIIb and F9V. 8962 1D: AB 6.3, 7.2v, 351.22y, a = 0.41". 8969 1D: Optical. 8973 1D: compound multiple. 8976 1D: AB optical. 8988 1D: Component B, compound multiple, A5Vep; however, the companion is optical. 8999 1D: compound multiple, F6IV and G8V. 9002 1D: 11813y, a = 14.21". Companion F2III or F2V, sources discordant; vsini 96k/s. 9003 1D: Component A has composite spectrum but star unresolved by interferometer. vsini of G5 component <19:k/s, A0 component 9003 2D: =<50k/s. Component B, 14.6v at 25"; C, 13.1v at 62". 9016 1D: AB binary. B, 11v at 4". C is HD 223340, G type. AC, compound multiple. 9017 1D: AB 6.8 A0, 7.4v, 565.77y, a = 0.74". C, 8.6v at 50" optical. 9018 1D: AB binary. B is cA0. 9038 1D: AB binary. B, 12v M2 at 5". 9041 1D: Separation 0.107". 9044 1D: Companion F2V; vsini 43k/s. Components also classified A = Am(A1/A8V/F0), B = Am(A1/F1/F0). 9045 1D: Possibly wide compound multiple pair with HR 9052. 9052 1D: Wide pair with HR 9045. 9066 1D: Companions optical. 9071 1D: AB binary, 5.0v B2III, 7.1v B3V. 9074 1D: AB 6.5 G0V, 6.7 G0V, 355y, a = 3.125". C 12.9V at 82". Blended mag for HR 9074/5, 5.81V; colors for combined light. 9075 1D: Binary with HR 9074, q.v. 9078 1D: Probably single. 9088 1D: AB 5.84 G3V, 8.88 K6V, 26.386y, a = 0.803". A possible new companion found by speckle interferometry. Components C, D 9088 2D: probably optical. C is K7V. 9094 1D: ADS 1B, 7.47V, +0.08(B-V), +0.05(U-B), A2Vn, vsini 275k/s, may be shell star. AB binary. C, 10.8m at 99" optical. 9105 1D: Binary.