- Linux/Unix; Windows 2000/NT/XP/Vista 32-bit or 64-bit; MacOS X 10.5 or greater.
- A 3D graphics card with a support for OpenGL.
- A dark room for realistic rendering — details like the Milky Way or star twinkling can't be seen in a bright room.
- Minimum of 256 MiB RAM, 1 GiB or more required for the largest star catalogues.
Download packages for various platforms are available directly from the main page. Choose the correct package for your operating system.
- Double click on the stellarium-0.11.2-win32.exe file to run the installer.
- Follow the on-screen instructions.
- Locate the stellarium-0.11.2-Universal.dmg file in finder and double click on it, or open it using the disk copy program.
- Have a browse of the readme file, and drag Stellarium to the Applications folder (or somewhere else if you prefer).
- Note that it is better to copy Stellarium out of the .dmg file to run it — some users have reported problems when running directly from the .dmg file.
Check if your distribution has a package for Stellarium already — if so you're probably best off using it. If not, you can download and build the source.
- Windows The Stellarium installer creates an item in the Start Menu under in Programs section. Select this to run Stellarium.
- MacOS X Double click on Stellarium (wherever you put it).
- Linux If your distribution had a package you'll probably already have an item in the Gnome or KDE application menus. If not, just use a open a terminal and type stellarium.