Highly underrated activity for locals and overseas visitors. Wonderful star/galaxy/binary stars/star cluster/supernova(!) viewing using one of the largest telescopes in Japan! Very friendly staff took time to point the massive telescope towards celestial subjects from as close as our moon to as far as galaxies millions of light years away. Visitors can simply walk-in without advance booking and purchase tickets at the reception (cheap and highly worthwhile). We arrived at 8:30pm and stayed for close to an hour.

We came twice...weather forecast in Japan is very accurate. We came on the first day and the sky was very cloudy. We decided to head back again the next day and the effort paid off. Sky was clear and we caught the full moon (autumn festival)! Bright and round! We also saw Saturn. The staff did her best to communicate in English with us, really appreciate it.

the lady staff very knowledgeable and pointed many stars to view and even offer help to take a photo using mobile phone.

We got to see millions of lightyears into the past with this giant telescope. The sky wasn’t completely clear, clouds moved in and out, and it was nearly full moon, yet it turned out to be a good night for viewing. Among the objects we viewed were various colors of stars (blues and reds were wonderous), whole galaxies, a red giant, a supernova. We were two adults who came out of it having experienced much wonder. Big thank you to the staff member who showed us around the universe. On our way back, we were the only ones on the road and drove while spotting wildlife—including foxes, deer, raccoon dogs, and hares. Highly recommended!

Dedicated staff who pointed out so many things to see, and directed the huge telescope for us! Good to go when it's not the full moon, so that you can see more.