Celestia for Android is a real-time space simulator for exploring the solar system on an Android device.
The Best Orbiter Alternatives in 2026
Looking for something like Orbiter? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 7 are open source.
Orbiter simulates spaceflight using Newtonian mechanics, with the solar system and its major bodies as its setting.
Top picks at a glance
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | AndroidCelestia | — | Yes | Android |
| 2 | Keeptrack.space | — | Yes | — |
| 3 | Webb Compare | — | Yes | — |
| 4 | AndroidPlanisphere | — | Yes | Android |
| 5 | Look4Sat | — | Yes | Android |
| 6 | Stellarium | — | Yes | Android, Linux, macOS |
| 7 | Sgp4gl Demo | — | Yes | — |
| 8 | 1 Pixel moon | — | Not stated | Web |
| 9 | SpaceSim | — | Not stated | Web |
| 10 | Space Time | — | Not stated | Web |
All Orbiter alternatives
Keeptrack.space visualizes satellite data and tracking sensors in 3D for users exploring astrodynamics.
Webb Compare lets visitors compare images from the James Webb Space Telescope with earlier telescope images.
AndroidPlanisphere provides a star chart showing the Sun, Moon, stars, constellations, and planets for a selected location.
Look4Sat provides an Android satellite tracker and pass predictor, with information sourced from Celestrak.
Stellarium renders realistic skies in real time with OpenGL and is available for Linux, Windows, macOS, and Haiku.
This project demonstrates real-time three-dimensional satellite visualization in a browser using SGP4GL, CesiumJS, and Next.js.
1 Pixel moon
joshworth.com/dev/pixelspace/pixelspace_solars…If the Moon Were Only 1 Pixel maps solar system objects in a scale model that begins with a one-pixel Moon.
SpaceSim
spacesim.coExplore the Solar System, change time, and inspect worlds in this browser-based 3D space simulation.
Space Time
space.pointdynamics.comA browser-based 3D universe explorer combines the solar system, stars, deep-sky objects, satellites, and galaxies.
Atlas of Space
atlasof.spaceAtlas of Space interactively explores planets, moons, asteroids, and other objects in the Solar System.
Solar System
eyes.nasa.gov/apps/solar-systemEyes on the Solar System offers a three-dimensional view for exploring the solar system and past and future missions.
Solar System Scope
solarsystemscope.comSolar System Scope provides an online 3D simulation of the Solar System and night sky.
Space Atlas
spaceatlas.techSpace Atlas tracks satellites and rocket bodies on a live 3D map, with history extending from Sputnik to today.
Energia-Buran Archive
buranarchive.spaceThe Energia-Buran Archive catalogs images of Buran orbiters, organized into albums.
LightYear
lightyear.fmLightYear visualizes how long radio broadcasts take to reach different celestial bodies at light speed.
Space Notices
space-notices.comSpace Notices lists upcoming rocket launches and spaceflight events, alongside recent launches.
Next Spaceflight
nextspaceflight.comNext Spaceflight lists upcoming launches and provides schedule details such as launch sites, vehicles, and payloads.
Encyclopedia Astronautica
astronautix.comEncyclopedia Astronautica provides a spaceflight reference with tens of thousands of pages and thousands of images.
Visible Earth
visibleearth.nasa.govNASA's Earth Observatory publishes images, stories, and discoveries about the environment, Earth systems, and climate.
SDO Dashboard
sdo.gsfc.nasa.gov/data/dashboardThe Solar Dynamics Observatory dashboard supports study of the Sun's influence on Earth and near-Earth space.
SpaceWeather
spaceweather.comSpaceWeather.com reports solar wind and flare data, with news about meteor showers, auroras, and near-Earth asteroids.
Live Meteors
livemeteors.comLive Meteors lets visitors listen to meteor radio pings and explains how the system works.
NASA’s Image and Video Library combines searchable imagery and video with downloads and associated metadata.
Alternatives to similar tools
What is the best alternative to Orbiter?
Are there open-source alternatives to Orbiter?
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





















