StarsOutAlert me on good nights
Should you go outside tonight?
Probably not tonight
Too much cloud cover for a good session.
Dortmund
3.8
out of 10
Peak 2h
5.123:00–01:00
Prime 21–01
4.921:00–01:00
Best this week
8.3Sun, Jun 7
Moon
Waning Gibbous
98% lit
Very bright — stick to planets and the moon itself
🔭 Moon up: 22:33–05:15
📍 SW · 1°
Sky now
Clear · 0%
Measured at EDLW · 10km away · 13min ago
Sun ↓ 21:37·Dark from 22:37·91% clouds
🔭
Moon visible today
18:56 – 21:37 · 98% lit · great for telescope viewing
Next great night
Friday — 7.9
✨ Great night tonight
Sky quality tonight
Best: 23:00–01:00This week’s nights
Europe/BerlinHow the score works
60% weight
Cloud cover
Layer-weighted across the best 2-hour window of the night. Low clouds block everything, thin high cirrus still lets bright stars through.
40% weight
Moon darkness
A new moon boosts the score. A full moon near midnight washes out all but the brightest stars. We ease the penalty after midnight when the moon is setting.