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. It is being used in planetarium projectors.

Free Open Source Mac OS X Windows Linux

Celestia

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.

Free Open Source Mac OS X Windows Linux

Space Engine

Space Engine - a real-time 3D space simulator, procedural universe generator and visualiser. It lets you explore the universe in three dimensions, starting from planet Earth to the most distant galaxies.

Free Windows

Pioneer

Pioneer is a space adventure game set in the Milky Way galaxy at the turn of the 31st century. The game is open-ended, and you are free to explore the millions of star systems in the game.

Free Open Source Mac OS X Windows Linux

WorldWide Telescope

The WorldWide Telescope (WWT) is a Web 2.0 visualization software environment that enables your computer to function as a virtual telescope, bringing together imagery...

Free Open Source Windows Web

StarCalc

StarCalc is the fastest professional astronomy planetarium & star mapping program for Windows 9x/ME/NT/2000/XP (StarCalc version for PocketPC is available).

Free Windows Windows Mobile

WinStars

WinStars uses the latest 3D technology to show the objects of our solar system in a realistic manner.

Freemium Windows Linux Wine

Universe Sandbox

Universe Sandbox is an interactive space simulator for Windows based PCs. Unlike most astronomy software that just shows you what the sky looks like or where the planets are, Universe Sandbox is a powerful gravity simulator.

Commercial Mac OS X Windows Linux Steam

Planetarium

A browser-based virtual planetarium of stars and planets customizable by location (latitude and longitude) and time of day.

Free Web

Gaia Sky

3D visualization software for ESA's (European Space Agency) Gaia mission to chart about 1 billion stars of the Milky Way Galaxy.

Free Open Source Mac OS X Windows Linux

Aciqra

Aciqra (uh-SEE-kruh) is a free and open source virtual sky map and planetarium which tracks and displays astronomical bodies including planets, nebulae and stars to an...

Free Open Source Windows Linux

Solar System Scope

3D simulation of the Solar System and night sky - real time virtual orrery and observatory Features: - Heliocentric view with real-time positions of planets and...

Freemium Mac OS X Windows Android iPhone Web

Noctua Stellarium Mobile

Stellarium Mobile is a fully-featured planetarium for your phone. It shows a realistic night sky map in 3D, just like what you see with the naked eye, binoculars or a telescope.

Commercial

Exoplanet Explorer 3D

Exoplanet Explorer takes you on a journey beyond the limits of our Solar System. Based on the latest available data, you’ll explore virtual models of more than 700 known...

Free Android

Solar Model

SourceForge presents the Solar Model project. Solar Model is an open source application. SourceForge provides the world's largest selection of Open Source Software....

Free Windows

Digital Universe Atlas

The Digital Universe Atlas incorporates data from dozens of organizations worldwide to create the most complete and accurate 3-D atlas of the Universe from the local...

Free Mac OS X Windows Linux

Starry Night (series)

The Starry Night apps are the most comprehensive educational astronomy apps. Use it with your introductory astronomy textbook or on its own. It's a powerful...

Commercial Mac OS X Windows Android Tablet iPad