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Astronomy Related Downloads

Alcyone Ephemeris Thumbnail
Alcyone Ephemeris 2.5
Alcyone Ephemeris is an accurate and fast astronomial ephemeris calculator covering the period 3000 BC to AD 3500. It calculates heliocentric, geocentric, and topocentric positions of the Sun,...
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SpaceStationSim Thumbnail
SpaceStationSim 2.2
SpaceStationSim gets you up close and personal with your own crew of astronauts who live and play in outer space! Build your own International Space Station with loads of modules and cool...
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Chinese Calendrics Thumbnail
Chinese Calendrics 8.17
A program to convert between dates in various Chinese calendars and dates in the Gregorian and Julian calendars, and to find lunar new year's day and leap months for any year in the Chinese Calendar.
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EarthWatch Thumbnail
EarthWatch 4.01
EarthWatch displays a graphical world clock with a dynamic map image of the world showing the day and night areas, a sundial, and an information panel featuring sunrise/sunset times and much more...
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