Ishigaki · Altitude not shown until sourced

Ishigakijima Astronomical Observatory

An Ishigaki observatory offering reservation-only public observing sessions.

Promising skies. Check access first.

Forecast availableSky conditions onlyRecommendation paused

Sunset 19:33Astronomical dark 20:58Sunrise 06:06

88Sky conditions only

Moon for the selected night

First quarter

41% · Above horizon

41%

Excellent

Cloud

Wind 19.2 km/h

Excellent

Rain chance

12%

Visibility 19 km

Poor

Humidity

82% · 27°C

Visibility 19 km

Mon, Jul 20

Facility closed

Checks before departure

Closed 10-12 July 2026 for Typhoon No. 9; verify reopening and reservation availability.

Facility closedWeather warning

· 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 13, 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.