Orbital Mechanics
The sky above you, right now.
A 24-hour dial that puts you at the centre, with the Sun, Moon, planets, bright stars and constellations placed by their true compass direction and altitude. One glance tells you what is overhead, what has set, and what is about to rise — then you can step outside the Earth entirely and fly through the solar system.
What it does
- A local sky dial, a top-down solar-system map, and a 3D view you can fly
- Stand on Earth for a ground-level sky with a real horizon and compass
- Scrub time from minutes per second up to years per second
- Positions from VSOP87 and ELP2000, computed on your device to a few arcseconds
- Every IAU-named moon, the named asteroids, and Halley's Comet
On the App Store. The web version is gone. Everything
runs on the device, so it works with no signal at all.
Privacy
No account, no ads, no analytics, no trackers, and no servers. Your location, if you choose to share it, is used on the device to work out your horizon and is never transmitted anywhere. Read the full privacy policy.
Support
Questions, bug reports or feature requests: musclememory.dev@gmail.com