Best Open Source Astronomy Software 2025

Astronomy Software

Astronomy Danish Clear Filters

Browse free open source Astronomy software and projects below. Use the toggles on the left to filter open source Astronomy software by OS, license, language, programming language, and project status.

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1

Stellarium

A planetarium software that shows a 3D simulation of the night sky

Stellarium renders 3D photo-realistic skies in real time with OpenGL. It displays stars, constellations, planets, nebulae and others things like ground, landscape, atmosphere, etc.

344 Reviews

Downloads: 2,755 This Week

Last Update: 2025-08-18
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2

Gpredict

Real time satellite tracking and orbit prediction

Gpredict is a real-time satellite tracking and orbit prediction application. Gpredict can track an unlimited number of satellites and display the data in tables and various graphical view.

21 Reviews

Downloads: 450 This Week

Last Update: 2020-12-19
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3

AudeLA

AudeLA is a TCL extension aimed at providing amateur astronomers with image processing, telescope controling, ccd camera driving, and various astronomical algorithms. Web site : https://sourceforge.net/p/audela/wiki/fr_accueil Web site : https://sourceforge.net/p/audela/wiki/en_welcome

Downloads: 9 This Week

Last Update: 2025-10-29
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4

Stellarium for Java

Java version of Stellarium.

2 Reviews

Downloads: 0 This Week

Last Update: 2013-04-26
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