Pocket Planetarium
Ephemerous
The real sky above you, right now — then wind time by hours or years and watch it turn.
About
Every star, planet, and constellation drawn exactly where it stands over your spot on Earth — the real sky, not a generic one.
Roll from your own horizon to the pole-centred celestial view in one gesture, wind the heavens through time, and remember the objects you love.
Features
- The real sky above you, right now
- Two views — your horizon and the celestial sphere — one continuous morph
- Wind time by hours, days, months, or years
- Tap anything to learn it; remember what you love
- Anywhere on Earth, both hemispheres
- Home Screen widgets + an Apple Watch astrolabe
Tech
CoreLocation · CoreMotion · CloudKit · WidgetKit · watchOS · iOS 26+ · Loads of trig · Claude
Status
- Stage On the App Store
- Version 1.0
- Platforms iPhone · iPad · Watch
- Built with SwiftUI