Celestia is a free space simulator for Windows, Linux, macOS, iOS and Android. You can freely explore space in three dimensions. The program displays objects and orbits based on scientific data.
On this page you can download Celestia for Windows, macOS and Linux. There you will also find links to repositories and source code.
Celestia FAQ Graphics The Earth and other planets look strange. They have weird colors or do not look like globes. How can I fix this? Celestia is drawing planets and moons bright red. Why? The Moon is.
Oct 30, 2025 · Celestia Users General discussion about Celestia that doesn't fit into other forums.
Introduction to Creating Celestia Add-Ons Selden Ball has created a very helpful introduction to creating add-ons for Celestia. If some of your favorite astronomical objects are missing from Celestia, or if you.
The Celestia WikiBook contains technical documentation on Celestia for users, add-on creators, and developers. Experienced Celestia users are invited contribute to the Wikibook themselves. Please.
List of key events of the Celestia project. Here you will find information about past releases of the program, as well as other updates.
Nov 20, 2020 · This topic has guides for new users on how to install Celestia, sorted by operating system. The Celestia Discord server has had similar installation guides since April 2019; I've now.
