Celestia is a 3D astronomy program, The program is based on the Hipparcos Catalogue (HIP) and allows users to travel through an extensive universe, modeled after reality, at any speed, in any direction, and at any time in history. Developed by Chris Laurel
License: Open Source
Celestia is focused on providing a highly customizable 3D rendering of space, making it ideal for users interested in detailed space exploration and satellite tracking. In contrast, Stellarium offers a more user-friendly interface with extensive educational resources, making it a great choice for beginners and educational purposes.