Sol Orrery
The solar system, right now
$3.99 · Designed for iPad. Not verified for macOS.
Sol Orrery is a solar system you can trust. Every position is computed from published orbital elements for the date and time you choose - not an animation loop.
Watch Io's shadow cross Jupiter's cloud tops. Stand on Europa with Jupiter filling 12 degrees of sky. Follow Voyager 1 past 172 AU, or pull back until the whole Milky Way turns beneath you.
WHAT YOU GET
- The planets, from photographic surface maps - real continents, real cloud bands, Saturn's rings casting shadows on the planet and taking its shadow back.
- 21 moons, each in its own orbit, with the tidally locked ones keeping one face turned home.
- Eight comets on their true orbits - Halley, Hale-Bopp, Encke and more - growing dust and ion tails as they near the Sun.
- 43 real spacecraft, each modelled and placed: Voyager 1 and 2, New Horizons, Parker Solar Probe, JUICE, Europa Clipper, Juno, Perseverance, the ISS and Tiangong.
- Around 9,000 satellites in Earth orbit - Starlink's real shells, GPS, Galileo, the geostationary belt - dimming as they pass into Earth's shadow.
- Eclipses that are actually computed: the Moon turning copper in Earth's umbra, a moon's shadow tracking across a planet's face.
- Stand on a world: Tranquility Base, Jezero crater, the ice of Europa, the south pole of Enceladus. Angular sizes are true - the Sun really is three times wider from Mercury.
- Time from real-time to 100 million years per second, forwards or backwards, across a billion years.
- True scale mode: swap the readable layout for real sizes at real distances.
- Zoom out past the heliopause, through the Oort cloud and the nearest stars, to the Galaxy - with our own position marked.
HONEST ABOUT ITS LIMITS
Planet positions use JPL's approximate elements (accurate within about 1800-2050); the lunar theory is good to roughly a tenth of a degree, so eclipse times are approximate to a few minutes. Spacecraft cruise paths between real flyby dates are interpolated. The app says so, on the panel for each object, rather than pretending otherwise.
No account, no ads, no tracking, no network. Everything runs on your device, offline.
Planetary and lunar surface maps by Solar System Scope (solarsystemscope.com), used under CC BY 4.0.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Explore guided tours for every Browse group or the whole orrery, choose and control tracks in the compact music player, and hide selected-object details when you want a clear view. Search now clears in one tap, and planetary motion is slower and more cinematic.
The developer, Randy Ramos, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Randy Ramos
- Size
- 28.2 MB
- Category
- Education
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Randy Ramos
