Stellarium Stellarium is a comprehensive open-source planetarium that allows you to explore the sky in real time from your computer. Thanks to its realistic 3D environment, it displays stars, planets, constellations, nebulae, Messier objects, and the Milky Way in exceptional detail. Whether you're an astronomy enthusiast, student, teacher, or simply curious, Stellarium offers an intuitive way to observe the sky, understand celestial movements, and easily locate objects visible from your location.
The software offers smooth navigation, powerful zoom, and several display modes adapted to different uses, including wide-angle and fisheye projections for planetariums. It can simulate solar and lunar eclipses, display the positions of major planets and satellites in real time, and accelerate time to track changes in the sky. With its simple graphical interface, clickable information on stars, planets, and nebulae, as well as its full-screen and windowed modes, Stellarium becomes a very useful tool for learning, preparing for an observation, or virtually traveling through the universe.
Key features of Stellarium:
- Open source planetarium with realistic 3D sky display.
- Over 120,000 stars from the Hipparcos catalogue.
- Detailed information on the brightest stars.
- Display of planets and major satellites in real time.
- Simulation of solar and lunar eclipses.
- Drawing of the 88 constellations with their names.
- Representation of mythological figures from the constellations.
- Textured display of over 70 nebulae, including Orion and M31.
- Photorealistic Milky Way.
- Realistic effects such as star twinkling and shooting stars.
- Quick rendering of the atmosphere, sunrises and sunsets.
- Grids in equatorial and azimuthal coordinates.
- Lines of the celestial equator and the ecliptic.
- Powerful zoom for observing planets and nebulae as with a telescope.
- Time control in real-time or accelerated mode.
- Fullscreen, windowed and 180° dome projection display modes.
- Simple interface with clickable celestial objects and integrated information.
Stellarium is particularly useful for those who want to discover astronomy without complex equipment. It allows you to prepare an observation evening, learn about the constellations, or view the sky from different locations and times.
Note that there is also Google Earth ProAnother exploration solution, this time dedicated to Earth, maps, satellite imagery, and 3D views. You can discover it here: https://www.trucnet.com/google-earth-pro-portable/
Conclusion :
In conclusion, Stellarium is an excellent astronomy software for observing the sky, exploring constellations, and understanding celestial movements. Free, comprehensive, and realistic, it is suitable for both beginners and enthusiasts who want to transform their computer into a real planetarium.
Version : 26.2
Language : Multilingual (French included)
Size : 455.75 MB / Laptop: 868.22 MB
Configuration:
– Windows (x64 Bits): 7, 8, 10, 11
Download Stellarium v26.2
Download Stellarium Portable v26.2
This article was updated on June 26, 2026
