Opening hours & days open/closed

  • Those who wish to enter the observatory are required to take their body temperature at the reception desk and submit an application form.
  • The number of people who can enter the observatory at the same time is limited to 50.
  • Evening visitors will need to make a reservation. (For more information, please see the page in Japanese)

Opening hours

March ~ October
Exhibitions : 10 am ~ 5 pm
 ( Entry : 10 am ~ 4:30 pm )
Stargazing : 7 pm ~ 10 pm
 ( Entry : 6 pm ~ 9:30 pm ) *
November ~ February
Exhibitions: 10 am ~ 4 pm
 ( Entry : 10 am ~ 3:30 pm )
Stargazing: 6 pm ~ 9 pm
 ( Entry : 5 pm ~ 8:30 pm ) *

* Reservations are required at night from July 2020. In principle, nighttime services are available for individual customers on Saturdays, Sundays, and holidays, and for groups on weekdays (exceptions may be made).

The observatory may be temporarily closed due to typhoons or snow.

Days open/closed

December 2021
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
Open day and night
4, 5, 11, 12, 18, 19, 25, 26
Open during the day, only for groups at night
1-3, 8-10, 15-17, 22-24
Open during the day, closed at night
7, 14, 21
Closed
6, 13, 20, 27-31
January 2022
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
Open day and night
8-10, 15, 16, 22, 23, 29, 30
Open during the day, only for groups at night
6, 7, 12-14, 19-21, 26-28
Open during the day, closed at night
18, 25
Closed
1-5, 11, 17, 24, 31
February 2022
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
Open day and night
5, 6, 11-13, 19, 20, 23, 26, 27
Open during the day, only for groups at night
2-4, 9, 10, 16-18, 24, 25
Open during the day, closed at night
8, 15, 22
Closed
7, 14, 21, 28
March 2022
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
Open day and night
5, 6, 12, 13, 19-21, 26, 27
Open during the day, only for groups at night
2-4, 9-11, 16-18, 23-25, 30, 31
Open during the day, closed at night
1, 8, 15, 29
Closed
7, 14, 22, 28
April 2022
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
Open day and night
2, 3, 9, 10, 16, 17, 23, 24, 29, 30
Open during the day, only for groups at night
1, 6-8, 13-15, 20-22, 27, 28
Open during the day, closed at night
5, 12, 19, 26
Closed
4, 11, 18, 25