Detailed Description of Catalogue II/139B

II/139B     General Catalog of Variable Stars, 4th Ed. (GCVS4)  (Kholopov+ 1988)
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General Catalogue of Variable Stars, 4th Edition, Volumes I-III
    Kholopov, P.N., Samus', N.N., Frolov, M.S., Goranskij, V.P.,
    Gorynya, N.A., Kireeva, N.N., Kukarkina, N.P., Kurochkin, N.E.,
    Medvedeva, G.I., Perova, N.B., and Shugarov, S. Yu.
   Nauka Publishing House (1985-1988)
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ADC_Keywords: Stars, variable

Description:
    This data set is the machine-readable version of the fourth edition of
    the General Catalogue of Variable Stars (Kholopov et al. 1985-1988).
    The machine version contains the same data as in the first three
    volumes of the printed catalog, but only the data tables without the
    textual material (introduction, bibliography, remarks) are included.
    Modifications to the format of the machine version have been made at
    the Astronomical Data Center in order to effect a completely
    homogeneous record structure suitable for full machine processing and
    sorting.

    The fourth edition of the General Catalogue of Variable Stars
    supersedes the third edition (Kukarkin et al. 1969-1970), three
    supplements (Kukarkin et al. 1971, 1974, 1976) containing data for
    5401 new variable stars and improved data for many earlier designated
    variables, and five namelists (62-66) published in the Information
    Bulletin of Variable Stars (Kukarkin et al. 1976; Kholopov et al.
    1978, 1979, 1981a, 1981b), which included only cross identifications
    for 2619 new variables. This new edition contains data for 28484
    individual objects discovered and named by 1982 and located mainly in
    the Milky Way galaxy. These data are contained in the first three
    published volumes. The fourth volume of the fourth edition, published
    in 1990, contains a table of all variables ordered by right ascension
    and declination (B1950), a table of variables listed by variability
    type, and an extensive series of cross-identification tables to
    alternate designations (see II/172). The fifth and final volume will
    contain data for all presently known variables in external galaxies
    (including the Magellanic Clouds), extragalactic supernovae, and
    optically variable quasistellar objects and galactic nuclei
    (see II/205).

    Data contained in the catalog include star identifier, equatorial
    position (B1950), annual precession, galactic coordinates, type of
    variability, maximum and minimum magnitudes, epoch of maximum, period,
    and spectral type.

    Since extensive modifications have been made to the record structure
    of the machine version, users are encouraged to carefully study the
    brief descriptions given in the document.

    The list of errors published by Durlevich et al. (1994) has been
    incorporated in this version

File Summary:

      

  FileName      Lrecl  Records   Explanations

ReadMe             80        .   This file
adc.doc            80     1930   Full Documentation by Warren (1989)
catalog           158    28488   The GCVS4 Catalog

See also:
    II/172 : GCVS4, Vol. IV: Cross-identifications (Kholopov+ 1992)
    II/195 : Namelists of variable stars Nos.67-71 (Khopolov+, 1985-93)
    II/205 : GCVS4, Vol. V:  Extragalactic variables and supernovae
                             (Artyukhina+ 1996)

Byte-by-byte Description of file: catalog

   Bytes Format Units    Label     Explanations

   1-  2  I2    ---      Constell  Constellation numeric code
   3-  6  I4    ---      Number    Star number within the constellation
       7  A1    ---     Component  Component identification
   8- 15  A8    ---      GCVS      Variable star designation (13)
      16  A1    ---      NoteFlag  [*] Notes in published catalog
  17- 18  I2    h        RAh       ? Hours RA, equinox 1950.0 (1)
  19- 20  I2    min      RAm       ? Minutes RA, equinox 1950.0 (1)
  21- 22  I2    s        RAs       ? Seconds RA, equinox 1950.0 (1)
      23  A1    ---      DE-       Sign Dec, equinox 1950.0
  24- 25  I2    deg      DEd       ? Degrees Dec, equinox 1950.0 (1)
  26- 29  F4.1  arcmin   DEm       ? Minutes Dec, equinox 1950.0 (1)
  30- 36  F7.2  s/yr     precRA    ? Annual precession in RA (1)
  37- 42  F6.3 arcmin/yr precDE    ? Annual precession in DE (1)
  43- 48  F6.2  deg      GLON      ? Galactic longitude (1)
  49- 54  F6.2  deg      GLAT      ? Galactic latitude (1)
  55- 59  A5    ---      Ref1      Reference for study of the star (2)
  60- 64  A5    ---      Ref2      Reference for chart or photograph (3)
  65- 73  A9    ---      VarType   Type of variability (see file adc.doc, App.B)
      74  A1    ---      l_magMax  [)] ")" if magMax is a faint limit
  75- 81  F7.3  mag      magMax    ? Magnitude at maximum brightness (5)
      82  A1    ---      u_magMax  Uncertainty flag (:) on magMax
      83  A1    ---      l_magMin  [(] "(" if magMin is a bright limit
  84- 89  F6.3  mag      magMin    ? Minimum magnitude or amplitude
      90  A1    ---      n_magMin  [RU] Alternate system for magMin (4)
      91  A1    ---      u_magMin  Uncertainty flag (:) on magMin
      92  A1    ---      f_magMin  [)] ")" if magMin is an amplitude
      93  A1    ---      magCode   The photometric system for magnitudes (5)
  94-107  F14.6 d        Epoch     ? Epoch for maximum light, Julian days (6)
     108  A1    ---      q_Epoch   [:+-] Quality flag on Epoch (7)
 109-114  A6    ---      YearNova  Year of outburst for nova, in parentheses (6)
     115  A1    ---    u_YearNova  Uncertainty flag (:) on YearNova
     116  A1    ---      l_Period  [<>()] Code for upper or lower limits (8)
 117-132 F16.10 d        Period    ? Period of the variable star
     133  A1    ---      u_Period  Uncertainty flag (:) on Period
     134  A1    ---      n_Period  [N+] "N" for "unknown at present"
                                        "+" for the 3 stars mentioned in (9)
 135-138  A4    %        M-m/D     Rising time (M-m) or duration of eclipse (D),
                                        see (10)
     139  A1    ---      u_M-m/D   Uncertainty flag (:) on M-m/D
     140  A1    ---      n_M-m/D   [*] Note for eclipsing variable (11)
 141-157  A17   ---      SpType    Spectral type, or equivalent name according
                                       to Exists
     158  A1    ---      Exists    [=N] Existence of the variable (12)

Note (1): the position (equatorial and galactic) is not listed when the
     variable is equivalent to another catalogued variable ('=' in
     column Exists, byte 158)
Note (2): Ref1 is "00001" if the main characteristics of the star were
     determined by the authors themselves (see details in "adc.doc")
Note (3): If no chart is available for the variable, but the star is
     contained in one of the Durchmusterung catalogs, the corresponding
     abbreviation (BD, CPD, COD) is given.
Note (4): Code for alternate photometric system of magMin.
     Field is non-blank if magMin is a magnitude or amplitude given in
     a system other than that indicated by magCode, e.g. "U" or "R".
Note (5): the photometric system in which magMin and magMax are
     reported (see also Note (4)). The main codes are P (photographic
     magnitudes) and V (visual, photovisual, or Johnson's V).
     See details in file "adc.doc"
Note (6): Epochs are given for minimum light for all eclipsing and
     ellipsoidal variables, as well as for RV Tau and RS CVn types, and
     for maximum for all other types. This rule may occasionally be
     broken, but this is explained only in the remarks to the catalog,
     which are not available in machine-readable form at this time.
     For novae (types N) and supernovae (types SN), the Epoch is followed
     by a year of outburst enclosed in parentheses (bytes 109-114).
Note (7): the following codes are used:
     ':' epoch is uncertain;
     '+' epoch may be later than that reported;
     '-' epoch may be earlier than that reported.
Note (8): the following codes are used:
     '>' or '<' if period is a lower or upper limit, respectively.
     '(': the period is the mean cycle time of a U Gem or recurrent nova.
Note (9): Modifications made at CDS compared to the
     "Selected Astronomical Catalogs, Vol. 1" CD-ROM  of ADC (NASA):
     Four stars shows a problem in the Period column: UY Dor;
     DD Eri, DE Eri and LL Sct has a '+' instead of the decimal point,
     the '+' was pushed to the n_Period column
Note (10): this column holds the rising time (M-m) of intrinsic variables,
     or the duration of the eclipse (D) for eclipsing binaries.
     These values help to define the shape of the light curve.
     The value is given in percentage of the period of the star.
Note (11): the '*' indicates that the duration of the light constancy
      phase at minimum light (d) for an eclipsing variable is equal
      to zero.
Note (12): the following codes are used:
     '=' if the variable is equivalent to another catalogued variable
         (the identification of the other variable will be in SpType),
     'N' if the object does not exist.
Note (13): the following non-common transliterations of greek letters
     are used: dzeta, miu, niu, ksi, khi. Lower- and upper-case
     latin letters must be distinguished (e.g. u HER and U HER)

Historical Notes:
  * See the document by Warren (1989), section 3.
  * 06-May-1996: The errors by Durlevich et al (1994) have been
    incorporated at CDS.
  * 15-Oct-1996 (version 'B'): errors were detected by G. Mennessier
    <menes@mira.lpm.univ-montp2.fr>, and corrected after
    consultation with N. Samus <samus@sai.msu.su>
    for the following stars:
    QY CAS , V2064 SGR , KL TEL (which was spelled KU TEL)

References:
   Durlevich, O.V., Frolov, M.S., Kazarovets, E.V., and Samus, N.N., 1994,
      Bull. Inf. CDS 45, 19
   Kholopov, P.N., Kukarkina, N.P., and Perova, N.B. 1978, 63rd Name-List of
      Variable Stars, Inf. Bull. Variable Stars, No. 1414
   Kholopov, P.N., Kukarkina, N.P., and Perova, N.B. 1979, 64th Name-List of
      Variable Stars, Inf. Bull. Variable Stars, No. 1581
   Kholopov, P.N., Samus', N.N., Frolov, M.S., Goranskij, V.P., Gorynya, N.A.,
      Kireeva, N.N., Kukarkina, N.P., Kurochkin, N.E., Medvedeva, G.I.,
      Perova, N.B., and Shugarov, S.Yu. 1985-88, General Catalogue of
      Variable Stars, 4th edition (Moscow, Nauka Publishing House)
   Kholopov, P.N., Samus', N.N., Kukarkina, N.P., Medvedeva, G.I., and Perova,
      N.B. 1981a, 65th Name-List of Variable Stars, Inf. Bull. Variable Stars,
      No. 1921
   Kholopov, P.N., Samus', N.N., Kukarkina, N.P., Medvedeva, G.I., and Perova,
      N.B. 1981b, 66th Name-List of Variable Stars, Inf. Bull. Variable Stars,
      No. 2042
   Kukarkin, B.V., Kholopov, P.N., Efremov, Yu.P., Kukarkina, N.P.,
      Kurochkin, N.E., Medvedeva, G.I., Perova, N.B., Pskovsky, Yu. P.,
      Fedorovich, V.P., and Frolov, M.S. 1971, First Supplement to the Third
      Edition of the General Catalogue of Variable Stars (Moscow, Publishing
      House of the Academy of Sciences of the U.S.S.R.)
   Kukarkin, B.V., Kholopov, P.N., Efremov, Yu.P., Kukarkina, N.P., Kurochkin,
      N.E., Medvedeva, G.I., Perova, N.B., Pskovsky, Yu.P., Fedorovich, V.P.,
      and Frolov, M.S. 1974, Second Supplement to the Third Edition of the
      General Catalogue of Variable Stars (Moscow, Publishing House of the
      Academy of Sciences of the U.S.S.R.)
   Kukarkin, B.V., Kholopov, P.N., Fedorovich, V.P., Kireyeva, N.N.,
      Kukarkina, N.P., Medvedeva, G.I., and Perova, N.B. 1976, 62nd Name-List
      of Variable Stars, Inf. Bull. Variable Stars, No. 1248
   Kukarkin, B.V., Kholopov, P.N., Kukarkina, N.P., Kurochkin, N.E., Medvedeva,
      G.I., Perova, N.B., Pskovsky, Yu.P., Fedorovich, V.P., and Frolov, M.S.
      1976, Third Supplement to the Third Edition of the General Catalogue of
      Variable Stars (Moscow, Publishing House of the Academy of Sciences of
      the U.S.S.R.)
   Kukarkin, B.V., Kholopov, P.N., Pskovsky, Yu.P., Efremov, Yu.N., Kukarkina,
      N.P., Kurochkin, N.E., Medvedeva, G.I., Perova, N.B., Fedorovich, V.P.,
      and Frolov, M.S. 1969-1970, General Catalogue of Variable Stars, 3rd
      edition (Moscow, Publishing House of the Academy of Sciences of the
      U.S.S.R.)
   Warren, W.H., Jr. 1989, General Catalogue of Variable Stars,
      4th edition, Documentation for the Machine-Readable Version,
      NSSDC/WDC-A-R&S 88-23
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(End)                                     Francois Ochsenbein [CDS]  15-Oct-1996

CDS Catalogue Service