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Stellarium is a free software planetarium, licensed under the terms of the GNU General Public License, available for Linux, Windows and Mac OS X. It uses OpenGL to render a realistic sky in real time. With Stellarium, it's possible to see what one can see with the naked eye, binoculars or a small telescope.

Stellarium is developed by the French programmer Fabien Chéreau, who launched the project in the summer of 2001. Other prominent developers include Robert Spearman, Johannes Gajdosik and Johan Meuris, who is responsible for the artwork.

Features include:
* Over 120,000 stars from the Hipparcos Catalogue.
* All the solar system's planets and their major moons.
* Panorama landscapes, fog, atmosphere and realistic sunsets, sunrises and eclipses.
* Standard perspective and wide angle (fish eye) projection modes.

Since version 0.8.0, Stellarium is available in more than 40 languages.
This entry uses material from from Wikipedia, the leading user-contributed encyclopedia. It is licensed under the GNU Free Documentation License. Disclaimer.