Guide
Nayoro City Observatory (affectionately known as Kitasubaru) is a public observatory located in Nayoro, Hokkaido. Originally established as a private observatory, it is now operated through a collaboration between Hokkaido University and Nayoro City. The facility's crowning jewel is the "Pirika Telescope," a massive 1.6m aperture telescope that is one of the largest of its kind in Japan. Designed primarily for planetary observation, this high-spec instrument is used not only for research but also for public viewing sessions, allowing visitors to experience the cutting edge of astronomy.
The observatory's roots trace back to a private institution founded by Hideo Kihara, a former high school teacher. In 1992, the facility was donated to Nayoro City and originally operated as the "Nayoro City Kihara Observatory." In April 2010, it evolved into its current form, "Nayoro City Observatory Kitasubaru," under a partnership with Hokkaido University to facilitate more advanced research and public engagement. It has long served as a vital cultural hub for astronomy in the region.
The main draw is observing the cosmos through the Pirika Telescope. This reflecting telescope is highly specialized for planetary observation, featuring advanced designs like Cassegrain and Nasmyth foci. It is capable of observing across multiple wavelengths, making it a professional-grade instrument. Visitors can also enjoy the planetarium facilities and various astronomical exhibits that provide a visual way to understand the mechanics of the universe. Depending on the season, the observatory may host special sessions focused on significant phenomena like supernovas or specific planetary alignments.
Observatory activities are primarily centered around nighttime viewing and specific celestial events. For instance, summer often features special programs like the Tanabata (Star Festival) stargazing sessions. Special observation opportunities may also be scheduled to coincide with meteor showers or significant astronomical events, such as the observation of Venus or supernovas. During the day, visitors can deepen their knowledge through telescope tours and educational exhibits. Since schedules for observation sessions change based on weather and celestial conditions, it is essential to check the official website in advance.
Beyond standard stargazing, the facility hosts a variety of programs, including music live sessions paired with star-watching. These events blend the beauty of the night sky with cultural entertainment. Additionally, the observatory offers educational programs where you can learn about the structure of the Pirika Telescope and the mechanics of planetary observation. These sessions provide a rare opportunity to learn about space using professional-grade equipment.
The observatory is located within the "Hoshimi no Oka" (Star-Viewing Hill) area of Hokkaido Prefectural Sun Pillar Park. This location offers a pristine natural environment perfectly suited for observing the stars. Visitors can enjoy walking tours and the surrounding natural beauty of Nayoro while immersing themselves in the astronomical atmosphere.
Please check the official website regarding payment for facility use or specific events. Availability of cash or credit cards varies depending on the type of event.
While some English signage may be available, the level of English-language explanation provided by staff depends on the specific event and timing. It is recommended to check in advance for details.
For participation in stargazing sessions, music events, or special celestial observation programs, it is highly recommended to check the schedule and make a reservation in advance via the official website.
If you are participating in nighttime observations or outdoor events, warm clothing is essential. Hokkaido's nights can be extremely cold, so please prepare appropriate seasonal gear to stay comfortable.