1
Also covers android, open source, and space · same kind of open-source project
Celestia for Android is a real-time space simulator for exploring the solar system on an Android device.
Alternatives
The Best Stellarium Alternatives in 2026
24 alternatives2 free · 7 open source
Looking for something like Stellarium? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 2 are free or have a free plan and 7 are open source.
About Stellariumgithub.com/Stellarium/stellarium
VisitStellarium renders realistic skies in real time with OpenGL and is available for Linux, Windows, macOS, and Haiku.
Top picks at a glance
First suggestionAndroidCelestiaCelestia for Android is a real-time space simulator for…Free or freemium optionOrbiterOrbiter simulates spaceflight using Newtonian mechanics…Another optionSgp4gl DemoThis project demonstrates real-time three-dimensional…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | AndroidCelestia | — | Yes | Android |
| 2 | Sgp4gl Demo | — | Yes | — |
| 3 | AndroidPlanisphere | — | Yes | Android |
| 4 | Look4Sat | — | Yes | Android |
| 5 | Orbiter | Free | Yes | — |
| 6 | Keeptrack.space | — | Yes | — |
| 7 | Webb Compare | — | Yes | — |
| 8 | Stellarium | — | Not stated | Linux, macOS, Web |
| 9 | Satellite Map | — | Not stated | iOS, Web |
| 10 | KeepTrack | — | Not stated | Web |
All Stellarium alternatives
2
Also covers open source and space · same kind of open-source project
This project demonstrates real-time three-dimensional satellite visualization in a browser using SGP4GL, CesiumJS, and Next.js.
3
Also covers android, open source, and space · same kind of open-source project
AndroidPlanisphere provides a star chart showing the Sun, Moon, stars, constellations, and planets for a selected location.
4
Also covers android, open source, and space · same kind of open-source project
Look4Sat provides an Android satellite tracker and pass predictor, with information sourced from Celestrak.
5
Also covers open source and space · same kind of open-source project · free
Orbiter simulates spaceflight using Newtonian mechanics, with the solar system and its major bodies as its setting.
6
Also covers open source and space · same kind of open-source project
Keeptrack.space visualizes satellite data and tracking sensors in 3D for users exploring astrodynamics.
7
Also covers open source and space · same kind of open-source project
Webb Compare lets visitors compare images from the James Webb Space Telescope with earlier telescope images.
8
Stellarium
stellarium.orgAlso covers linux and space
Stellarium is planetarium software that displays the sky and celestial objects.
9
Satellite Map
satellitemap.spaceAlso covers space
Satellite Map tracks satellites in real time on an interactive 3D map.
10
KeepTrack
keeptrack.spaceAlso covers space
KeepTrack tracks more than 37,000 satellites in real time and provides user profiles and achievements.
11
Track The Sky
trackthesky.comAlso covers space
Track The Sky tracks more than 9,000 satellites in real time on an interactive map.
12
ISS In Realtime
issinrealtime.orgAlso covers space
The ISS in Real Time page is titled as a live International Space Station tracking resource.
13
SpaceEngine
spaceengine.orgAlso covers space
Explore a realistic virtual universe on a computer with SpaceEngine’s universe simulator.
14
Stellarium-Web
stellarium-web.orgAlso covers space
The Stellarium Web planetarium displays celestial objects in a browser-based sky view.
15
SpaceSim
spacesim.coAlso covers space
Explore the Solar System, change time, and inspect worlds in this browser-based 3D space simulation.
16
Universe Atlas
universeatlas.orgAlso covers space
Universe Atlas visualizes scale from the observable universe to a proton, with real stars and planets shown at their measured sizes and distances.
17
Siril
siril.orgAlso covers linux and space
Siril processes astronomical images and provides information about available software versions.
18
Also covers android and space · free
Nights on Earth lists astronomical events including meteor showers and planetary conjunctions.
19
Also covers space
NASA’s Image and Video Library combines searchable imagery and video with downloads and associated metadata.
20
Find Starlink
findstarlink.comAlso covers android and space
Find Starlink helps users calculate when Starlink satellites can be seen overhead, with a live map.
21
Next Spaceflight
nextspaceflight.comAlso covers android and space
Next Spaceflight lists upcoming launches and provides schedule details such as launch sites, vehicles, and payloads.
22
Spot The Station
spotthestation.nasa.govAlso covers android and space
NASA's Spot the Station app tracks International Space Station passes and provides viewing schedules and alerts for a location.
23
Solar System Scope
solarsystemscope.comAlso covers android and space
Solar System Scope provides an online 3D simulation of the Solar System and night sky.
24
Home Page
worldwidetelescope.org/homeAlso covers space
WorldWide Telescope is a browser-based suite for showcasing astronomical data and imagery, rather than a physical telescope.
No alternatives match this filter.
Alternatives to similar tools
Images24 alternativesNights on Earth24 alternativesOrbiter24 alternativesKeeptrack.space24 alternativesNext Spaceflight24 alternativesHome Page24 alternatives
What is the best alternative to Stellarium?
Based on features, tags and platforms, the closest alternatives to Stellarium are AndroidCelestia, Sgp4gl Demo, and AndroidPlanisphere.
Is there a free alternative to Stellarium?
Yes. Orbiter and Nights on Earth are free or offer a free plan.
Are there open-source alternatives to Stellarium?
Yes: AndroidCelestia, Sgp4gl Demo, AndroidPlanisphere, and Look4Sat.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative