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Alcyone Ephemeris
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 (Earth), Moon, and planets.
Related keywords:
ephemeris, ephemerides, astronomy, planetary positions, lunar positions, celestial mechamics
free download (7.87 Mb)
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Planet's Orbits
Planet's Orbits (for Windows 98/ME/2000/XP) is an accurate digital orrery with a wealth of functionality. The program uses the DE404 ephemeris (accurate for dates between 2000 B.C. and 6000 AD) for the calculation of planetary (except Pluto).
Related keywords:
orrery, planets, asteroids, planetary positions, solar system, astronomy, satellites, ephemeris
free download trial (15.25 Mb)
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