Astronomy.com is for anyone who wants to learn more about astronomy events, cosmology, planets, galaxies, asteroids, astrophotography, the Big Bang, black holes, comets, constellations, eclipses, exoplanets, nebulae, meteors, quasars, obser...
Celestia, a real-time 3D space simulation featuring a database of over 100,000 stars, nearly a hundred solar system, objects, and a complete catalog of extrasolar planets.
This program enables you to draw sky charts according to the data of 15 catalogs of stars and nebulae, as well as plot the positions of planets, asteroids and comets.
Starry Night Enthusiast version 6 with FREE 6.0.4 Update - Starry Night Enthusiast version 6 3-D Spacecraft Track 3-D models of spacecraft on their journeys through ...
Information about each planet and moon in our solar system with many pictures, discussion of the history of its discovery, exploration, and physical characteristics. In addition to the planets, there are also pages about the Sun, many moons...
HNSKY Planetarium program for windows. With 26000 deepsky object and 2.5 million Tycho stars. Free! Can access GSC and UCAC2. Also a free REALSKY/DSS viewer and BMP to FITS convertor