StarsOutAlert me on good nights
Should you go outside tonight?
Might be worth a look
Partial clearing expected. Keep an eye out.
Phoenix
4.8
out of 10
Peak 2h
7.703:00–05:00
Prime 21–01
4.721:00–01:00
Best this week
8.7Wed, Sep 2
Moon
Waning Gibbous
96% lit
Very bright — stick to planets and the moon itself
🔭 Moon up: 19:45–08:28
📍 SE · 43°
Sky now
Mostly cloudy · 75%
Measured at KPHX · 7km away · 13min ago
Sun ↓ 18:57·Dark from 19:57·51% clouds
🔭
Moon visible today
06:01 – 07:46 · 96% lit · great for telescope viewing
Next great night
Tuesday — 7.0
🌙 Good night ahead
Sky quality tonight
Best: 03:00–05:00This week’s nights
America/PhoenixHow 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.