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- The Earth Centered Universe (tm)
- for MS-Windows 3.x
-
- Shareware Sky Visualization Program
-
- Version 1.4
- Released April 1993
-
- David J. Lane
- 4-26 Randall Avenue
- Halifax, Nova Scotia
- Canada B3M 1W2
-
- Voice: (902) 443-5989 (evenings AST)
- CIS: 71601,247
- Internet: dlane@husky1.stmarys.ca
-
-
- ECU V1.4 is a shareware Sky Visualization Program for Microsoft
- Windows 3.x called "The Earth Centered Universe". It is capable of
- simulating many of the features of the Earth's sky. You only need to
- enter your geographic location and the time and the local sky is
- simulated on the screen in a colourful display. This includes, but
- is not limited to the stars, planets, Sun, Moon, and "deep sky" objects.
- Constellation, coordinate grid, ecliptic, and local horizon lines are
- also displayed. ECU is designed as an observing tool for the observing
- amateur astronomer, but is equally useful to the "armchair" astronomer
- or other interested person interested in the night sky.
-
- Some of the features of ECU are listed below:
-
- - fast compared to many commercial packages - mostly integer math
- so math processor is not needed, but is supported to improve
- speed of solar system calculations, etc.
- - colourful display - colours of all screen elements controllable
- by user with scroll bars
- - high quality star charts can be printed on any Windows compatible
- printer or plotter
- - continuous display of LMT, UTC, latitude and longitude, RA/DEC,
- AZ/ALT, field size, and star mag limit
- - databases: Yale star catalogue to 6.5 magnitude
- SAO star catalogue to 9.5 magnitude (optional)
- SAC deep sky database (over 10,000 objects)
- planets, Sun, Moon, and Comets
- - very easy to use - zoom box, center image, zoom in/out, etc. all
- done with the mouse. Scroll bars for RA and DEC or Alt/Az. Hot
- keys and buttons for common functions
- - click on an object and an information box pops up. All objects
- give RA, Dec, azimulh, altitude, rise and set times, and magnitude.
- Planets/Sun/Moon give distance (AU or km), angular size (" or '),
- and phase (or age). Comets give distance to the Sun and the Earth
- in AU. Yale stars give Yale number, HD number, SAO number,
- Flamsteed/Bayer designation, Spectral type, and proper motion. SAO
- stars give SAO number, and spectral type. Deep sky object provide
- a varying amount of info but usually provide the name (an other name),
- Dreyer description, size, classification, etc. The coordinates
- can be precessed to the current date/time.
- - the user can display a GIF picture of the object, if one exists.
- None are provided with ECU. Some may become available at a small
- fee.
- - measure angular separation on the sky with the mouse
- - load and save all settings to named configuration files
- - undo last operation
- - time set as LMT, UTC, or system clock (daylight savings flag, too.)
- - time format as 24 hour or am/pm
- - observer's location entered by lat/long or pick list of preprogrammed
- cities (add your own, too)
- - control the effects of observer's parallax, nutation, precession, light travel
- time, aberration, and atmospheric refraction
- - show sky as white on black background or black on white background,
- or in full colour
- - also supported is a "red" mode to save your night vision if used in an
- observatory
- - set magnitude limits of deep sky and stars (with scroll bars)
- - select type of deep sky objects displayed (with check boxes)
- - displays horizon line, ecliptic line, ra/dec grid (fine and coarse),
- zenith marker, constellation lines, IAU constellation boundary lines,
- labels for bright stars, constellations, messiers, coordinate grid, etc.
- - center on - RA/DEC
- - Azim/Alt
- - bright stars
- - constellations
- - messiers
- - points on horizon (north, south, etc.)
- - solar system objects
- - search the database and center on the object found
- - animation mode - time increments in steps from 1 minute to four years or a
- user selected arbitrary increment
- - set direction either forward or reverse
- - lock to Sun, Moon, Planet, alt/az or ra/dec
- - trails of objects supported
- - and much, much more!
-
- - system requirements: 286/386/486 100% PC compatible
- 386DX recommended
- Math co-processor beneficial
- MS-Windows 3.x (standard or enhanced mode)
- EGA/VGA or better color screen
- min 600kbytes free memory (1 meg recommended) from
- within MS-Windows
- 80x87 (or 486DX) recommended but not required
- Mouse
- Windows compatible printer supported
-
- - Distributed Name: ECUSHARE.EXE (ECUSHA.EXE on Compuserve)
- - Shareware fee - $35.00US basic
- - $20.00US for additional database of about
- 250,000 stars
- - $15.00US for upgrades
- - Customer Support is provided by free e-mail, telephone, or mail support
-
-