Celestia is described as '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' and is a well-known app in the Education & Reference category. There are more than 10 alternatives to Celestia for a variety of platforms, including Windows, Linux, Mac, Online / Web-based and Android Tablet. The best alternative is Stellarium, which is both free and Open Source. Other great apps like Celestia are Space Engine (Paid), Gaia Sky (Free, Open Source), Elite: Dangerous (Paid) and Cosmonium (Free, Open Source).
- 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 accuracy of... View 34 alternatives to Aciqra
The project is no longer developed. Last version, 2.3.2, released in July 2013, can be still downloaded from SourceForge.
- Free • Open Source
- 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 solar neighbourhood out to the edge of the observable Universe. View 12 alternatives to Digital Universe Atlas
- Free • Proprietary