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- The Earth Centered Universe (ECU)
- for MS-Windows 3.x
-
- A Shareware Sky Visualization Program
- for Amateur Astronomers
-
- Version 1.5
- Released January 1994
-
- Nova Astronomics
- (David J. Lane)
- 4-26 Randall Avenue
- PO Box 31013
- Halifax, Nova Scotia
- Canada B3K 5T9
-
- Voice: (902) 443-5989 (evenings GMT-4)
- CIS: 71601,247
- Internet: dlane@hercules.stmarys.ca
-
- ECU is also available in French
-
- Available on Compuserve in Lib 7 or ASTROFORUM as ECUSHA.EXE
- Available on Internet by FTP at "hercules.stmarys.ca"
- as "/pub/ecu/ecushare.exe"
-
- ECU V1.5 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, comets, asteroids, and
- "deep sky" objects. Constellation, Constellation boundary, coordinate
- grid, ecliptic, and local horizon lines are also displayed. It prints
- high quality star charts to any Windows-compatible printer and also controls
- modern computerized telescopes.
-
- 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 customizable 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
- - the display of Siderial and Julian Date are available
- - 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, comets, and asteroids
- - 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 and asteroids 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.
- Their coordinates can be precessed to the current date/time.
- - the user can display a GIF/PCX/BMP or TIF image of the object,
- if one exists through the use of an external viewer. No images are
- provided with ECU.
- - measure angular separation on the sky with the mouse. It also
- provides the difference in RA and Dec.
- - load and save all settings to named configuration files
- - load and save comet and asteroid elements to separate ASCII 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.
- - Two circles and one rectangle of a programmable angular size
- can be draw at the centre of the sky display that are intended
- to represent field of view of your main telescope, finder scope,
- and camera respectively.
- - 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
- - extensive support is provided for the Meade LX200 (and LXD)
- telescope series. This includes a moving cross hair on the
- screen, a real-time coordinate readout, and hand controller
- support. It also allows the scope to be "slewed" to an selected
- object
- - extensive support is provided for the JMI SGT-MAX (and others)
- digital setting circles. This includes a moving cross hair on the
- screen and a real-time coordinate readout. It also aids the user in
- finding a selected object
- - prints high quality star charts on any Windows-compatible printer
- with customized titles, programmable borders, scale factors for
- deep sky and stellar symbols, etc.
- - A dialog box to display the rise/set times of the sun and moon
- on the current day is provided. It also shows the times of civil,
- nautical, and astronomical twilight.
- - and much, much more!
-
- - system requirements: 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 700kbytes 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