Observed arrival · 2026-08-24
星空予想, a Weather Map for Stargazers
A Japanese map that rates observing and astrophotography conditions across public viewing spots.
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$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
Why it surfaced
星空予想 combines cloud cover, humidity, moonlight, lunar rise and set times, and estimated light pollution into a one-to-five-star score. It lets users move from tonight out to 16 days ahead, then inspect hourly cloud conditions for the next seven days.
A Japanese map that rates observing and astrophotography conditions across public viewing spots.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
●ProPolished or operationally mature
◎NicheUnusually specific use
◉HumanPersonal, local, civic, or handmade
One card from the complete issue