Celestia

Download Celestia free for PC and phone

Discover the universe in real-time with this powerful educational program. It allows you to freely travel through three-dimensional space, from Earth's surface to distant galaxies, using precise astronomical data. Explore over 100,000 stars, planets of the Solar System, their moons, asteroids, and comets, as well as models of spacecraft. Scale time to observe eclipses or orbital motion. The vast catalog of objects is enhanced by easily installable add-ons. This is a unique tool for space visualization, suitable for both curious users and educational purposes.

27 May 2026

Title	Celestia
Size	36.3 MB
Price	free of charge
Category	Utilities
Developer	Celestia
System	Windows

36.3 MB

576 reviews

5193

downloads

PEGI Rating

Celestia installation

Click on the Download button to start downloading Celestia for Windows from Maombi.com

Open the .exe installation file in the Downloads folder and double click it

Follow the instructions in the pop-up window to install Celestia on Windows Desktop

Now you can open and run Celestia on your PC

Celestia Features

Celestia is your personal planetarium and space simulator, opening up the entire universe for exploration. The program allows you to travel through the Solar System and beyond, visiting planets, stars, and galaxies in real-time. You can observe the precise positions of celestial bodies, study spacecraft trajectories, and download additional add-ons to expand the object catalog.

Journey Across the Universe

Freely navigate the Solar System and beyond to over 100,000 stars and other celestial bodies.

Vast Object Catalog

Built-in database of stars, planets, moons, asteroids, comets, and spacecraft to explore.

Real-Time Positioning

Observe the accurate real-time positions of celestial bodies with the ability to choose your viewpoint.

Easy Add-On Installation

Expand the program's capabilities with easy-to-install add-ons featuring new objects from the official site.

Educational Tool

Perfect for learning astronomy, conducting virtual research, and visually studying space.

Planetary Exploration

Visit and study planets, their moons, and other objects in detail with zoom and fly-by capabilities.

Celestia overview

01

Explore the vast expanse of space with an app that visualizes the orbits of planets and comets. Watch celestial objects move in real time and study their characteristics. Adjust the display settings to get a complete picture of the solar system. Dive deeper into astronomy and expand your knowledge of the universe through engaging simulations
02

Discover the amazing world of astronomy and space. The app visualizes planets and their moons, immersing you in the details of their structure and motion. Observe the interactions between celestial bodies and get information about each object. Fascinating facts and clear models make learning interesting and accessible
03

Unravel the mysteries of space and dive into the captivating world of astronomy. You can observe planets and asteroids in their natural environment, helping you better understand the structure of our solar system. Study various celestial bodies and their features, and get information on the latest discoveries in astronomy. Every journey across the starry sky will open up new horizons
04

Journey through the incredible reaches of space with an app that lets you watch planets and their moons in real time. Immerse yourself in interactive models to study the unique features of each planet. You'll have the chance to control spacecraft and gather unique data about distant worlds, making learning both exciting and informative
05

Study our planet in an interactive format and immerse yourself in the fascinating world of astronomy. The app offers detailed models of Earth and other celestial bodies, letting you rotate and zoom in on objects for a deeper understanding. Learn about geography, climate, and ecosystems as you uncover new facts. With this tool, learning becomes engaging and visually rich