Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope.


The best Star Map alternative to Space Engine is Stellarium, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Space Engine and eight of them are Star Maps so hopefully you can find a suitable replacement. Other interesting Star Map alternatives to Space Engine are Celestia, Gaia Sky, Solar System Scope and Noctua Stellarium.
Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope.


Celestia is an application for real-time 3D visualization of space, with a detailed model of the solar system, over 100,000 stars, more than 10,000 galaxies, and an extension mechanism for adding more objects.



3D simulation of the Solar System and night sky - real time virtual orrery and observatory








WinStars uses the latest 3D technology to show the objects of our solar system in a realistic manner. Thus, it is possible to move from one planet to another, to follow a space probe on its long voyage or to observe a celestial event from a place to which you could never go.


SourceForge presents the Solar Model project. Solar Model is an open source application. SourceForge provides the world's largest selection of Open Source Software. The Solar Model is real time modeling of solar system.



I want to explore other Earth-like planets and it only seems to let you look at the night sky.