The actual planet,
on your wrist.
Planetaria for Wear OS is the desk globe's little sibling — the same live Earth, computed on a watch. The day/night line is where the Sun really is. The clouds are NASA's latest satellite pass. Earthquakes pulse at their true epicentres, the ISS tracks overhead, and the city lights come on where night has actually fallen. Swipe, and you're at the Moon — showing tonight's true phase.
It is not a wallpaper
Every frame is computed on the watch from the real world: the Sun's true position for this exact minute, fresh NASA imagery, live USGS and NOAA feeds. Nothing is an animation loop — turn the Motion setting to time-lapse and watch a whole day of daylight sweep the planet in two minutes.
The real day & night
The sunlit and shadowed halves are placed astronomically, with a soft twilight band exactly where dusk is falling on the real planet. NASA VIIRS clouds are fetched daily; the night side glows with real city lights.
A living planet
Recent magnitude-4.5+ earthquakes pulse at their true epicentres. The ISS crosshair crosses the disc on its real orbit. On the schedule you choose, a time & weather card fades in over the globe — local time, temperature and feels-like — then leaves the planet clean.
Fourteen views, one swipe
Earth is the first page of a carousel that wraps around in both directions: a live NOAA tide dial for the nearest station · the Moon, tidally locked and lit exactly as much as tonight's moon · a night-sky planisphere of the constellations above your location · the Sun · and Mercury through Neptune in real imagery. Settings and attribution close the loop.
Your globe, your framing
Keep the desk globe's classic sun-framed view — the terminator always in frame — or flip one setting and your home sits at the centre of the disc, tilted to your real latitude, still lit by the real Sun. The original's options came along too: motion time-lapse speeds, view tilt, shadow amount, layer toggles for clouds, city lights, ISS and quakes, brightness and auto-dim at night.
A face, a tile, four complications
Wear the planet
A battery-friendly watch face shows the Earth for the current hour with four data dials: tonight's moon illumination, the next tide, sunrise or sunset, and the next ISS pass — each tappable, each also available as a complication for any face you already love.
One swipe from anywhere
The tile is a snapshot of your planet — your location centred, the real terminator across it — with tonight's moon phase and the next sunrise or sunset beneath. Tap it and the full app opens.
Built like an instrument
On-device astronomy
The subsolar point, moon phase, planet positions, sunrise and sunset are all computed on the watch — the same maths as the desk globe's firmware, validated against reference data.
Offline-first, forever
Lose the network and the astronomy keeps running — globe, terminator, Moon, planets, night sky. Live layers (clouds, weather, tides, quakes, ISS) simply go stale gracefully and catch up later.
Battery discipline
The globe renders on a slow tick, dims instantly in ambient mode, and only runs its time-lapse spin while charging. Live data arrives on a gentle schedule — never a hot loop on your wrist.
App specifications
| Platform | Wear OS 3 or newer, standalone — no phone app required. Tested on a Galaxy Watch 7 |
| Rendering | Per-pixel software spherical renderer, ported from the desk globe's firmware — real subsolar lighting, night-lights blend, live cloud compositing |
| Views | Live Earth · NOAA tide dial · Moon (true phase, tidally locked) · night-sky planisphere for your location · Sun · Mercury–Neptune |
| Face & tile | Watch face with the Earth by the hour + 4 slots · glanceable tile centred on you · complications: moon %, next tide, sunrise/sunset, next ISS pass |
| Data sources | NASA GIBS/VIIRS imagery · MET Norway weather · USGS earthquakes · NOAA tides · NORAD ISS orbit — all keyless, aggregated by a free edge worker |
| Settings | The desk globe's options, on the wrist: motion time-lapse, globe center, view tilt, shadow, layer toggles, time & weather frequency, brightness, auto-dim, °C/°F |
| Privacy | No account, no ads, no analytics. Location stays on the watch except rounded coordinates used to fetch your weather and tides |
| Price | Free. |