The night sky,
finally yours
Plan your observations, explore the Messier catalogue, and discover what's visible from your exact location - tonight.
Coming soon 
Everything an amateur
astronomer needs
From your first look at the sky to your hundredth logged session.
Personalized list of observable objects based on your GPS, Bortle index, and weather. Sorted by optimal observation time.
Browse 110 Messier objects and the full NGC database. Filter by type, magnitude, constellation, or apparent size.
Log sessions with conditions, equipment, sketches, and photos. Track your Messier progress with stats and a visual grid.
Save your favorite spots. Accurate Bortle index, cloud cover forecasts, and light pollution comparisons.
Know exactly when each object peaks. Lunar calendar with moonrise and set times. Alerts at zenith.
Home screen and lock screen widgets. Bortle, moon phase, tonight's top objects — without opening the app.
Start free, go further with Pro
No subscription required to explore the night sky.
- ✓ Messier catalogue (110 objects)
- ✓ Tonight's observable objects
- ✓ 1 saved observation site
- ✓ Up to 10 logged sessions
- — NGC full catalogue
- — Session planner
- — iOS Widgets
- ✓ Everything in Free
- ✓ Full NGC catalogue
- ✓ Unlimited sessions & sites
- ✓ Advanced session planner
- ✓ iOS Widgets (home + lock screen)
- ✓ PDF logbook export
- ✓ iCloud sync across devices
Start observing tonight
Free to download. No account required.
Coming soon