# Stellarium (open-source science and GIS app)

> 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.

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.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/Stellarium/stellarium |
| Platforms | Linux, macOS, Windows |
| Interface | desktop GUI |
| GitHub stars | 10,041 |
| License | GPL-2.0 (open source) |
| Replaces | n/a |
| Language | C++ |
| Website | https://stellarium.org |
| Official | yes (published by the project behind the app) |
| Category | Science, GIS & engineering |
| Latest release | v26.3 (Sep 28, 2026) |
| Last commit | Oct 8, 2026 |

## Install

Download a build for your system from the project's releases (https://github.com/Stellarium/stellarium/releases) or website, or build it from source by following the README.

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