StarsOut
Is tonight good for stargazing in Brno?
Drop everything — go outside
Near-perfect conditions. Nights like this are rare.
Brno
Tonight's score
9.1
out of 10
Sun ↓ 18:05Dark 19:51–05:2815% cloud, 19:51–05:28
Best 2 hours
9.800:00–02:00
Evening, 21–01
9.021:00–01:00
Best this week
9.6Sun, Oct 18
Parts of the night. The score above covers the whole dark window.
Moon
Waxing Crescent
18% lit
Moon doesn’t interfere — perfect darkness
Moon up: 11:45–19:20
Visible in daylight from 11:45 until sunset
Full moon: Oct 26
Sky quality tonight
Best 2 hours: 00:00–02:00This week’s nights
Europe/PragueHow the score works
60% weight
Cloud cover
Averaged over the whole dark window, layer by layer. Low cloud blocks everything; thin high cirrus still lets bright stars through.
40% weight
Moon darkness
A new moon boosts the score. A bright Moon only costs points while it is actually above the horizon in the dark hours, and more the higher it stands.