Stellarium is a free software planetarium, licensed under the terms of the GNU General Public License, available for Linux, Microsoft Windows and Mac OS X. It uses OpenGL to render a supposedly realistic 3D computer graphics 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 France programmer Fabien Chéreau, who launched the project in the summer of 2001.

Features include:

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