Where is it dark?
01 / 04 · Where
See how dark the sky really is.
A light pollution layer from recent satellite data. Tap anywhere: sky quality, Bortle class and what you will actually see.
Astrospot · for astrophotographers
Most people have never seen a dark sky.
Scroll to switch off the lights.
The problem
Planning one night out takes four apps.
A map to find the dark, a forecast to check the clouds, a calendar for the moon, and hours on forums to find a spot you can trust.
Astrospot puts them in one place, built for the night.
Will it be clear?
Weather app
How bright is the moon?
Moon calendar
Is the spot safe?
Forums & maps
02 / 04 · When
Know if tonight is worth the drive.
Astronomical weather, hour by hour: clouds by layer, true darkness, the moon, dew risk and an honest seeing estimate.
03 / 04 · Safety
Know before you go, not at 2 a.m.
Every public spot has a safety sheet: access, private property, phone signal, terrain, parking. Kept fresh by the community.
04 / 04 · Places
Your spots stay yours.
A private archive on your phone. Share a spot with the community only if you want, with the exact point or just the area around it.
- 21.4SQM at this spotHigher is darker. 22 is pristine.
- Bortle 3Rural skyMilky Way clearly visible, with structure.
- Light pollution layerFrom city glow to truly dark skies.
- 22–03Clear window tonightOne verdict per hour, details on demand.
- 1.5″Seeing estimateShown with its reliability.
- 02:00Dew risk fromTime to switch on the heater band.
- ✓Public landNo trespassing surprises.
- !Weak phone signalTell someone where you are going.
- 10′Walk from the parkingDirt track, bring a headlamp.
- 🔒Private by defaultPersonal spots never leave your phone.
- ◎Exact or approximateShare the area, keep the exact point.
- ★Community spotsDiscover places shared by others.
05 · In the field
Keep your night vision.
White light ruins 30 minutes of dark adaptation in a second. Red-light mode turns the whole app red and dark, so you can check the plan next to the telescope.
Waitlist
Be there on the first clear night.
Astrospot is in development for Android and iPhone. Leave your email: you will hear from me when it launches.
- Free, no ads
- Private by default
- Made with the community
- Europe first