StarsOut
Should you go outside tonight?
Good night ahead
Mostly clear. Worth setting up.
Ponta Delgada
7.2
out of 10
Peak 2h
8.622:00–00:00
Prime 21–01
8.321:00–01:00
Best this week
9.3Sat, Jul 18
Moon
Waxing Crescent
5% lit
Moon doesn’t interfere — perfect darkness
🔭 Moon up: 08:51–22:44
📍 W · 20°
Full moon: Jul 29
Sun ↓ 21:03·Dark from 22:03·87% clouds
Alert me on good nightsSky quality tonight
Best: 22:00–00:00This week’s nights
Atlantic/AzoresHow 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.