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CompareOpen in Google Play
Where this app stands in Japan, updated 14 Oct 2026
Top free · Education
#31 ▼7
Top grossing
Not in this chart today
Top paid
Not in this chart today
| Date | Free |
|---|---|
| 14 Oct 2026 | #31 |
| 13 Oct 2026 | #24 |
| 12 Oct 2026 | #21 |
| 11 Oct 2026 | #25 |
| 10 Oct 2026 | #24 |
| 9 Oct 2026 | #33 |
| 8 Oct 2026 | #37 |
Best rank in each country today. Click a country to see its graph.
Updated the libraries in use. Fixed other minor issues.
Just point your phone at the night sky to see star and constellation names.
Discover and learn about celestial bodies in real-time by pointing your device at the sky. Point your smartphone at the night sky to instantly identify constellations, stars, and satellites. AR overlays show celestial names on the live camera view, and you can swipe to explore any direction. Get alerts for visible ISS passes and meteor showers. Includes: ・88 constellations (with Hevelius illustrations) ・Solar system planets, dwarf planets, asteroids ・Stars up to magnitude 12 ・About 100 Messier objects (nebulae and clusters) ・Over 10,000 satellites ・More than 300 comets ・Meteor showers and asterisms (Summer/Winter Triangle, Big Dipper, etc.) ・Satellite pass alerts (ISS, Hubble) ・Meteor shower peak notifications Works offline (satellite data won't update).