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.


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 3.0.292 (2023/09/13):

x64 version (Windows 10 & 11)

x86 version (Windows 7, 8.1, 10 & 11)

To update an existing WinStars3 installation, please use the Maintenance Tool 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 3.0.278 (2023/03/03):

Please follow the installation procedure

Raspberry Pi 4 (Raspberry Pi OS 64b Bullseye)

Release 3.0.278 (2023/03/03):

Please follow the installation procedure