Heliocentric Software

Coeli - Stella 2000 by Coeli Software Products

Complete astronomy software suite exploring realistic skies in real time, with observing log, Live Orbits, Sky Quiz, spoken guidance, A-Z encyclopedia, and a concentrated search embracing planets, comets, asteroids, DSOs, and 300,000 stars.

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Planetarium by Asynx Software Inc.

See 2500 stars, all 88 constellations, planets and the moonphase from 1600 AD to 9999 AD from any location on earth. Print todays night sky ! Nice visuals, smooth animation, simple controls, good planet data too.

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Alcyone Ephemeris by alcyone software

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.

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Kairon 3 by Kilian Sternad

Mac OS X 10.3+ astrology calculation software with SwissEphemeris and ACS Atlas multiple fonts, 21 Anayamsas, 19 aspects, over 11400 asteroids, over 300 arabic points, 14 house systems synastry,composite,combine,transits,harmonics,progressions,returns,...

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Khi 3 by SoftWare Informatique Nazairienne de Gestion

Advanced math, finances, currencies, stats, combinative, dates, curves, series, units and calendars conversions, astronomy, geometry, pi, chemistry, electricity. Divx Calculator. Games on gravitation, billiards...

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Orbit Xplorer by ottisoft.com

Educational orbit and gravitation simulator for high school, college and beginning university physics and astronomy. Easily create, run, print and save a simulation. Includes 29 premade simulations with activities page in html-format.

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