Stellarium
Stellarium is a free, open-source science and GIS app for Windows, macOS and Linux. Stellarium is a free GPL software which renders realistic skies in real time with OpenGL. It has 10,041 GitHub stars and is released under the GPL-2.0 license.
- Official
- Linux
- macOS
- Windows
- Science, GIS & engineering
- Actively maintained
About Stellarium
Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope.
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What is Stellarium?
Stellarium is a free, open-source science and GIS app for Windows, macOS and Linux. Stellarium is a free GPL software which renders realistic skies in real time with OpenGL. It has 10,041 GitHub stars and is released under the GPL-2.0 license.
Is Stellarium free and open source?
Yes. Stellarium's source code is public on GitHub under the GPL-2.0 license, which is OSI-approved or FSF-free, so you can use, copy and change it for free.
How do I install Stellarium?
Download the installer for Windows, macOS and Linux from its GitHub Releases page (latest: v26.3) or the project website.
Is Stellarium still maintained?
The repository's most recent commit was on Oct 8, 2026. appsgit only lists apps whose repository had a commit in the last six months.