- Please refrain from visiting from prefectures where a state of emergency or similar declaration has been declared.
- Those who wish to enter the observatory are required to ware a mask, take their body temperature at the reception desk and submit an application form.
- The maximum number of people allowed to enter at one time is 50.
- Evening visitors must make a reservation.
Opening Hours
- March ~ October
- Exhibitions : 10 am ~ 5 pm
Stargazing : 7 pm ~ 10 pm - November ~ February
- Exhibitions : 10 am ~ 4 pm
Stargazing : 6 pm ~ 9 pm
Days open and closed
| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
|---|---|---|---|---|---|---|
| 1 | 2 | |||||
| 3 | 4 | 5 | 6 | 7 | 8* | 9 |
| 10 | 11 | 12* | 13 | 14 | 15 | 16 |
| 17 | 18 | 19* | 20 | 21* | 22* | 23 |
| 24 | 25 | 26 | 27 | 28 | 29 | 30 |
| 31 |
* On the 8th, 12th, 19th, 21st, and 22nd, there will be times when admission will be restricted. Details of restriction(in Japanese)
- Open day and night
- 16, 17, 23, 24, 28, 30, 31
- Open during the day, only for groups at night
- 13-15, 20-22, 27, 29
- Open during the day, closed at night
- 1-3, 5-10, 12, 19, 26
- Closed
- 4, 11 18, 25
150-cm Reflector Telescope
- Specifications of telescopes.
- Stargazing parties.
- Research & Education (in Japanese)
Exhibitions
- Exhibitions
- Annual events calendar (in Japanese)
Sky monitor
Images of web camerasTweets
GAO official twitter
Photo Gallery