StarsOutAlert me on good nights
Should you go outside tonight?
Good night ahead
Mostly clear. Worth setting up.
Yellowknife
7.3
out of 10
Peak 2h
8.401:00–03:00
Prime 21–01
6.921:00–01:00
Best this week
8.8Tue, Sep 8
Moon
Waning Gibbous
66% lit
Bright moon — reduces deep sky visibility
🔭 Moon up: 20:26–15:39
📍 E · 23°
Full moon: Sep 26
Sky now
Overcast · 100%
Measured at CYZF · 5km away · 19min ago
Sun ↓ 20:44·Dark from 21:44·65% clouds
🔭
Moon visible today
06:31 – 11:01 · 66% lit · great for telescope viewing
Sky quality tonight
Best: 01:00–03:00This week’s nights
America/EdmontonHow 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.