Celestia

Download Celestia free for PC and phone

Journey through the boundless expanse of the universe with this educational program. Explore our Solar System in real time, travel to distant stars, and observe the motion of celestial objects with scientific accuracy. Navigate freely in three-dimensional space to study planets, their moons, asteroids, and comets. The built-in catalog contains hundreds of thousands of celestial bodies, and its functionality can be expanded with add-ons. This is a powerful tool for visualizing space, perfect for curious users and educational purposes alike.

27 May 2026

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

36.3 MB

576 reviews

5185

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 a powerful space simulator that turns your screen into a window to the universe. Travel freely through the Solar System and beyond, exploring planets, stars, and galaxies in real time. Observe the precise positions of celestial bodies, zoom in on them, and study their characteristics. With an extensive object database and add-on support, your astronomical discoveries are limitless.

Free-Form Space Travel

Journey from Earth to distant stars, controlling your speed and direction in real time.

Vast Celestial Database

Explore over 100,000 stars, planets, moons, asteroids, and comets from the built-in catalog.

Extensive Add-on Library

Expand the experience by installing new objects, textures, and missions from the official site.

Realistic Visual Display

View celestial bodies with accurate orbits, textures, and lighting based on scientific data.

Interactive Exploration

Zoom in on objects, access detailed information, and change perspectives for in-depth analysis.

Powerful Educational Tool

Perfect for learning astronomy, demonstrating cosmic phenomena, and visualizing scientific theories.

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