StarsOutAlert me on good nights
Should you go outside tonight?
Probably not tonight
Too much cloud cover for a good session.
Maastricht
3.9
out of 10
Low confidence
Models disagree on tonight — actual conditions may be cloudier.
Peak 2h
5.002:00–04:00
Prime 21–01
4.221:00–01:00
Best this week
9.4Sun, Sep 6
Moon
Waning Gibbous
84% lit
Very bright — stick to planets and the moon itself
🔭 Moon up: 20:57–10:44
📍 W · 12°
Full moon: Sep 26
Sun ↓ 20:25·Dark from 21:25·86% clouds
🔭
Moon visible today
06:51 – 09:24 · 84% lit · great for telescope viewing
Next great night
Thursday — 7.7
✨ Great night tonight
Sky quality tonight
Best: 02:00–04:00This week’s nights
Europe/AmsterdamHow 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.