Okayama or Fukuyama · Altitude not shown until sourced

Bisei Astronomical Observatory

The public observatory in Bisei, with night access governed by its official calendar.

Bright stars may show. Check access first.

Forecast availableSky conditions onlyRecommendation paused

Sunset 17:09Astronomical dark 18:35Sunrise 06:29

69Sky conditions only

Moon for the selected night

Waning crescent

19% · Above horizon

19%

Fair

Cloud

40%

Wind 6.6 km/h

Excellent

Rain chance

16%

Visibility 35 km

Poor

Humidity

89% · 10°C

Visibility 35 km

Wed, Nov 4

Outside opening window

Checks before departure

Verify the open night, hours, and any storm or snow closure on the official calendar.

Outside opening windowOfficial warning not verifiedStatus source expired

· Give your eyes about 10 minutes to adapt to the dark after arrival.
· Keep flashlights and vehicle lights low for other stargazers.
· Recheck local wind, cloud, temperature, and official warnings just before departure.
· Verify roads, public transport, the walking route, and your return separately from the sky score.

Checked: Jul 10, 2026, 00:00 · Review by: Jan 6, 2027, 00:00

Checked: Jul 10, 2026, 00:00 · Review by: Jul 24, 2026, 00:00

Checked: Jul 10, 2026, 00:00 · Review by: Jul 11, 2026, 00:00

Before you stargaze

· Give your eyes about 10 minutes to adapt to the dark after arrival.

· Keep flashlights and vehicle lights low for other stargazers.

· Recheck local wind, cloud, temperature, and official warnings just before departure.

· Verify roads, public transport, the walking route, and your return separately from the sky score.