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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 10,124 GitHub stars and is released under the GPL-2.0 license.

github.com/Stellarium/stellarium (opens in a new tab)

Data as of from the GitHub API; description from the project's repository. Report an error

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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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FAQ

Stellarium FAQ

Still curious? Email info@appsgit.com.

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 27, 2026. appsgit only lists apps whose repository had a commit in the last six months.