StarsOutAlert me on good nights
Should you go outside tonight?
Probably not tonight
Too much cloud cover for a good session.
Cork
4.5
out of 10
Peak 2h
5.722:00–00:00
Prime 21–01
4.521:00–01:00
Best this week
7.9Sat, Sep 5
Moon
Waning Gibbous
91% lit
Very bright — stick to planets and the moon itself
🔭 Moon up: 20:41–09:26
📍 SW · 33°
Full moon: Sep 26
Sky now
Mostly cloudy · 75%
Measured at EICK · 6km away · 14min ago
Sun ↓ 20:26·Dark from 21:26·62% clouds
🔭
Moon visible today
06:44 – 08:35 · 91% lit · great for telescope viewing
Next great night
Wednesday — 7.7
✨ Great night tonight
Sky quality tonight
Best: 22:00–00:00This 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.