WinStars 3 – A free planetarium application for Windows, macOS X, iOS, Android, Linux and Raspberry Pi.

The Universe in your computer

WinStars 3 is a free multi-platform planetarium that accurately represents celestial objects at a given moment. It also allows you to virtually travel through our solar system, the Milky Way, and the nearest galaxy clusters. Additionally, a dedicated news feed keeps you up-to-date with the latest discoveries in astrophysics, which can be visualized within the software. WinStars is a constantly evolving software, with new features regularly added to make it a tool dedicated to the exploration of our Universe.


Gratuity, social networks and latest changes

A few important changes in recent weeks: the software is now completely free of charge and is moving definitively to Qt 6.X. It is enriched with new features and integrates the Chromium browser, which improves the visualization of pages written in html (this only concerns the “Info” section for the moment). I rechecked the accuracy …

JUICE Launch: Exploring Jupiter’s Galilean Moons

On April 14, 2023, the European Space Agency’s (ESA) JUICE (JUpiter ICy moons Explorer) mission was launched aboard an Ariane 5 rocket towards Jupiter’s natural satellites. The spacecraft will fly by Callisto, Europa, and Ganymede multiple times before entering orbit around Ganymede in December 2034 for an in-depth study that will conclude in September 2035. …

Version 3.0.283: Improved representation of stars and removal of video mode

This new revision introduces a module (star3d) that enhances the appearance of stars by adding specific textures for each spectral type as well as 3D prominences. The representation is not entirely accurate from a scientific standpoint, as the visible surface of the stars and the prominences seem to combine different wavelengths. However, this adds just …


Windows 7/8.1/10/11

Release 3.0.301 (2023/12/28):
If the program indicates a problem with the Internet connection, please consult the following link.
To update an existing WinStars3 installation, please use the MaintenanceTool.exe located in the main WinStars3 folder (usually c:\program files\winstars3).


Available on Google Play:

macOS X

Find it on the Apple Store:


Available on the Apple Store:

Ubuntu 22.04 x64 LTS or later

Release 3.0.298 (2023/12/04):

Please follow the installation procedure

Raspberry Pi 4 (Raspberry Pi OS 64b Bullseye)

Release 3.0.301 (2024/01/03):

Please follow the installation procedure