Stellarium pleases both astronomy fans and those who are not familiar with this issue. As the name implies, it’s a spectacular planetarium, very complete and free. The program includes over 120,000 stars, planets, constellations, nebulae and various effects.

Stellarium also has a fully customizable earth display and navigation system. In addition, it combines a powerful sky database with realistic display options.

With just a few megabytes, you’ll get a complete outline of the sky and another way to see the stars. Also, thanks to this portable version, you can enjoy the original program on any computer without installing it.