StarsOut
Is tonight good for stargazing in Tokyo?
Good night ahead
Mostly clear. Worth setting up.
Tokyo
Tonight's score
7.3
out of 10
Sun ↓ 17:07Dark 18:32–04:2245% cloud, 18:32–04:22
Best 2 hours
7.622:00–00:00
Evening, 21–01
7.521:00–01:00
Best this week
9.9Sat, Oct 17
Parts of the night. The score above covers the whole dark window.
Moon
Waxing Crescent
15% lit
Moon doesn’t interfere — perfect darkness
Moon up: 09:14–18:52
Visible in daylight from 09:14 until sunset
📍 SW · 23°
Full moon: Oct 26
Sky quality tonight
Best 2 hours: 22:00–00:00This week’s nights
Asia/TokyoHow 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.