Version 26.3 · GPL-2.0-only · Windows · macOS · Linux
Looking for an alternative to Stellarium?Compare KStars, Celestia.Compare alternativesWith Stellarium you can see a starry sky for a chosen place and time. You look up planets and constellations and see how their position changes. That helps to prepare an evening of looking outside.
You can connect the image to your location and the direction you're looking at. Accelerate the time to see when an object rises above the horizon. The program is also useful for learning about the sky without a telescope.
Download Stellarium
Downloads are available for Windows, macOS, Linux.
Compare Stellarium with alternatives
If you want to know what you can see tonight, choose location, time and object information. For free travel through a three-dimensional space you need other functions. When using a telescope, check which control and observation functions support your equipment.
| Software | What can it do? | Platform and licence |
|---|---|---|
| StellariumYou are viewing this app | You look at a realistic starry sky for a chosen place and time. That helps to identify and plan objects in the sky. | Windows, macOS, LinuxGPL-2.0-only |
| KStarsView this alternative | You use a planetarium with astronomical data and functions for observations. The coupling with telescope and photography aids can be relevant in a more extensive arrangement. | Windows, macOS, LinuxOpen source |
| CelestiaView this alternative | You explore space in three dimensions and travel between celestial bodies. The emphasis is on spatial exploration rather than just the view from Earth. | Windows, macOS, LinuxOpen source |
Choose an alternative to explore its features, system requirements and download options.
Who is it for?
This is useful for stargazing, teaching and preparing observations with binoculars or telescope. It suits you if you want to learn to recognize objects and movements. The simulation does not replace up-to-date information about clouds or the conditions at your own observation site.
Getting started
First, set your location, date and time correctly. Then find a recognizable object and compare the direction with the real sky.
Privacy
A set location can reveal your living or sighting spot when you share configurations or screenshots. If necessary, use a nearby general location. Additional catalogues and plug-ins can request network access. Only enable extensions that you need for your observations.
Good to know
Your view outside also depends on clouds, light pollution and obstacles. The simulation is not a weather forecast.
Please note
A displayed object is not visible to the naked eye under all circumstances. Brightness, light pollution and your equipment determine what you can actually perceive. Never use the sun's display as an indication that you can look at it without appropriate protection by optical equipment.
Advantages
- You can explore celestial positions for different places and times.
- Labels help identify objects.
- The simulation makes a planned observation session better prepared.
Things to consider
- You need to set location and time correctly.
- Actual visibility depends on local circumstances.
- Additional catalogs or equipment links require their own equipment and control.
Download Stellarium
The download page opens in a new tab.
Provider’s website · stellarium.org
Version history
26.3
You get a new plug-in for the visibility of celestial objects and extended sky cultures.
- With Object visibility you can see the visibility of celestial objects, including additional displays for dusk.
- The Potawatomi sky culture has been added. Satellite data now also support the Alpha-5 TLE format.
- You can place toolbars in different angles. Also, calculations, sorting of celestial objects and saving window sizes have been improved.
26.2
You can view star tracks and get updated celestial data.
What’s new?
- You'll get a representation of star tracks and new official star names.
- You can explore the sky tradition of the Chinese Yuan dynasty.
- You can zoom in on the map in the location window and get improvements to extensions.
Report a new version
Our verdict
Stellarium is suitable if you want to see which stars, planets and other celestial objects are visible from a certain place and time. You get a simulated sky with which you can prepare a observation session. The outcome depends on correct settings. A wrong time zone or location can give a convincing picture that doesn't match what you see outside.
Choose Stellarium mainly to recognize objects and prepare an observation from your own location. First compare a known bright object with the real sky. For a session outside also buildings on the horizon and weather count. The simulation provides context, but those local conditions help determine what you can actually see.
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