StarsOutAlert me on good nights
Should you go outside tonight?
Might be worth a look
Partial clearing expected. Keep an eye out.
Graz
5.5
out of 10
Peak 2h
7.601:00–03:00
Prime 21–01
5.221:00–01:00
Best this week
8.6Sun, Jun 7
Moon
Waning Gibbous
98% lit
Very bright — stick to planets and the moon itself
🔭 Moon up: 21:31–05:11
📍 SW · 5°
Sky now
Clear · 13%
Measured at LOWG · 8km away · 28min ago
Sun ↓ 20:45·Dark from 21:45·27% clouds
🔭
Moon visible today
05:06 – 07:26 · 98% lit · great for telescope viewing
Next great night
Sunday — 8.6
✨ Great night tonight
Sky quality tonight
Best: 01:00–03:00This week’s nights
Europe/ViennaHow 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.