StarsOut
Should you go outside tonight?
Probably not tonight
Too much cloud cover for a good session.
Mauna Kea
4.1
out of 10
Clouds
98%
Moon
New Moon
1% lit
Moon below horizon — perfect darkness
Best window
20:00 – 22:00
Sun ↓ 18:40·Dark from 19:40
Alert me on good nightsSky quality tonight
Best: 20:00–22:00This week’s nights
Pacific/HonoluluHow 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.