Software : Celestia : Celestia


(as of 4/29/2014)

Software Overview

Main Features

  • Detailed 3D universe
  • Travel to different planets and stars
  • View the universe at different dates in history
  • Highly extensible

Celestia is a 3D astronomy application for Windows, Mac OS X, and Linux platforms. The program enables user to visualize the universe by exploring planets, stars, galaxies, and more.

In Celestia, you can explore the far reaches of the universe. You can navigate the solar system, travel to different planets, orbit stars, and more. The simulator can be used to display the orbital paths of spacecraft, asteroids, planets, and artificial satellites. Celestia lets you zoom in to objects thousands of miles away at different points in history. The application is highly extensible, as well. There is a large user community that develops different types of add-ons that extend program features, such as additional objects and even fictional universes that appear in movies such as Star Wars and Star Trek.

Celestia is a fun and educational astronomy simulator. It gives you many interactive features, such as the ability to set a time, travel speed, and different views. If you’re looking to explore the galaxy to infinity and beyond, try Celestia.

▶ Primary file extension

.CELX – Celestia Script

▶ Other file extensions used by Celestia 1

Supported File Types
.CELCelestia Script File
.CFGCelestia Configuration File
.CMODCelestia Model
.DSCCelestia Deep Space Catalog File
.FPFragment Program File
.SSCCelestia Solar System Catalog File
.STCCelestia Star Catalog File
.TXFCelestia Font Texture File
.VPVertex Program File
.XYZCelestia Sampled Trajectory Data File
.XYZVCelestia Sampled Trajectory File

Updated: April 29, 2014