StarsOutAlert me on good nights
Should you go outside tonight?
Might be worth a look
Partial clearing expected. Keep an eye out.
Galway
5.8
out of 10
Peak 2h
7.703:00–05:00
Prime 21–01
5.521:00–01:00
Best this week
9.0Fri, Sep 4
Moon
Waning Gibbous
66% lit
Bright moon — reduces deep sky visibility
🔭 Moon up: 21:19–13:47
📍 SW · 50°
Full moon: Sep 26
Sun ↓ 20:24·Dark from 21:24·91% clouds
🔭
Moon visible today
06:49 – 11:01 · 66% lit · great for telescope viewing
Next great night
Friday — 9.0
✨ Great night tonight
Sky quality tonight
Best: 03:00–05:00This week’s nights
Europe/DublinHow 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.