Celestia for Android is a real-time space simulator for exploring the solar system on an Android device.
Orbiter
Orbiter simulates spaceflight using Newtonian mechanics, with the solar system and its major bodies as its setting.

About Orbiter
Orbiter is an open-source spaceflight simulator based on Newtonian mechanics. It is set in the solar system and asks players to set their own objectives, because there are no predefined missions, aliens to destroy or goods to trade. The GitHub repository holds the simulator's source code.
Key features
- Solar-system setting with the sun, planets and moons.
- Control historic, hypothetical or science-fiction spacecraft.
- Goals can include ascent to orbit, a station rendezvous or interplanetary flight.
- Source code is published under the MIT License.
- In-game help and a User Manual in the Doc folder after building.
- Most planetary texture files are not in the repository and must be installed separately.
- Building from source requires a recent CMake and Microsoft Visual Studio.
- Orbiter is a 32-bit application.
- More difficult than most commercial space-themed games.
Orbiter at a glance
- Category
- Education & Learning › Space & Astronomy
- Type
- Open-source project
- Pricing
- Free
- Details verified
- Oct 22, 2026 · Official source
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Orbiter alternatives
Tools and sites you could use instead, ranked by how closely they match.
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.
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