Take the Odakyu Bus (境91) from Musashi-Sakai Station (JR Chuo Line and Seibu Tamagawa Line) for about 15 minutes and get off at Tenmondai-ura. Alternatively, take the Keio Bus (中央武91), Odakyu Bus (境91), or Odakyu Bus (鷹51) from Chofu Station (Keio Line and Sagamihara Line) for about 15 minutes and get off at Tenmondai-mae. Show route
Op.Hours
Daily from 10:00 AM to 5:00 PM, except for the New Year's period (December 28th to January 4th). Last entry is at 4:30 PM.
Cld.Days
Closed for electrical equipment inspection on Saturday, November 9th, 2024. Other closures may occur due to construction or maintenance.
Fee
Free admission. No reservations needed for individual visitors or small groups. Please stop by the guardhouse upon arrival.
INFO
Free bicycle parking and paid parking available. Free Wi-Fi available. Solar observation events are held in the First Equatorial Room on Saturdays and Sundays (schedule permitting).
The National Astronomical Observatory of Japan, Mitaka Campus, is the headquarters campus of the National Astronomical Observatory, National Institutes of Natural Sciences, located in Mitaka, Tokyo. Established in 1888 as the Tokyo Astronomical Observatory in Azabu, Minato-ku, it relocated to its current Mitaka location in 1924. The headquarters of the Astronomical Society of Japan is also located on this campus.
The Mitaka Campus features a unique blend of historical buildings and cutting-edge research facilities. Scattered throughout the campus are valuable observational instruments from the first half of the 20th century, offering a glimpse into the astronomical research of that era. State-of-the-art research facilities conduct astronomical observations and space-related research.
Publicly accessible facilities host stargazing events using telescopes, space-related exhibitions, and more, offering enjoyment for people of all ages. Furthermore, the campus contains the Tenmondai Kounai ruins, a complex archaeological site encompassing various periods from the Paleolithic and Jomon periods through the Kofun, Nara, and early modern periods.
The National Astronomical Observatory of Japan, Mitaka Campus, is a valuable place to learn about the history of Japanese astronomical research and deepen your understanding of the cosmos.