StarsOutAlert me on good nights
Should you go outside tonight?
Probably not tonight
Too much cloud cover for a good session.
Denver
4.4
out of 10
Peak 2h
6.702:00–04:00
Prime 21–01
4.221:00–01:00
Best this week
7.8Fri, Jun 5
Moon
Full Moon
100% lit
Very bright — stick to planets and the moon itself
🔭 Moon up: 21:16–06:05
Sky now
Partly cloudy · 38%
Measured at KBDU · 39km away · 3min ago
Sun ↓ 20:21·Dark from 21:21·84% clouds
🔭
Moon visible today
18:07 – 20:21 · 100% lit · great for telescope viewing
Next great night
Friday — 7.8
✨ Great night tonight
Sky quality tonight
Best: 02:00–04:00This week’s nights
America/DenverHow 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.