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National Astronomical Observatory of Japan (Mitaka, Tokyo)

2025 12/05
December 5, 2025

National Astronomical Observatory of Japan (Mitaka Campus, Mitaka City, Tokyo)

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Overview (history, characteristics, attractions)

The National Astronomical Observatory of Japan (NAOJ) is a core institution for astronomy research in Japan, and its Mitaka campus is one of its most representative facilities. While it conducts advanced observations and analysis as a research facility, it also focuses on astronomy education and outreach through public events, exhibitions, and lectures. The campus is surrounded by quiet green spaces and is home to some historic astronomical equipment and research facilities, making it an attractive site for scientific history.

Highlights

  • Exhibition and Reference Room (public area): The museum often displays panels and models introducing the basics of astronomy, the latest research results, and observation equipment, making it enjoyable for people of all ages (opening days may change, so please check beforehand).
  • Tour of the dome and telescope (only on open days): Facilities that are normally used by researchers are sometimes open to the public, allowing you to see the actual telescopes and observation domes up close.
  • Lectures and Observation Events: The observatory sometimes hosts lectures and seasonal observation events, where you can listen to experts speak and observe the stars. Advance registration may be required.
  • Surrounding nature and sceneryThe surrounding area is lush with greenery and is perfect for strolling, and you can enjoy the calming atmosphere with seasonal flowers and trees.

Access (nearest station, transportation, etc.)

  • Nearest station: Mitaka Station or Kichijoji Station on the JR Chuo Line (Mitaka Station is often closer).
  • Walking: It is within walking distance from Mitaka Station, but the travel time will vary depending on the route (approximately 15 to 25 minutes).
  • Buses and community buses: Local buses and community buses may depart from each station. Please check the timetable and route in advance, as the method of use may change depending on the destination and whether there are any public events.
  • Car/Parking: On-site parking is limited or subject to availability, so public transportation is recommended.
  • Note: Tours may be available on open days or by reservation only, so please check the official website of the National Astronomical Observatory of Japan's Mitaka Campus for information on opening hours and access in advance.

Estimated stay (estimated time required)

  • Exhibition viewing only: 30 minutes to 1 hour
  • Exhibition + lecture/mini-tour: 1.5 to 3 hours
  • Stargazing event (if there is a night event): Approximately 2-3 hours depending on the event

Nearby spots

  • Inokashira Park: A large park within walking distance or by bus where you can enjoy strolling, boating, and seasonal flowers.
  • Ghibli Museum, Mitaka: A popular museum for both children and adults (entrance requires a specific date and time and advance reservations).
  • Kichijoji area: Convenient for strolling and dining, with many cafes, shopping streets, and general stores.
  • Inokashira Park Zoo and Aquatic Life Park: A popular spot for families.

Things to be aware of (crowds, manners, seasonal precautions, etc.)

  • Require confirmation of opening dates and reservations:Many facilities on the Mitaka campus are not always open to the public. Please check the official website for information on open days, whether there are observation events, and whether advance registration is required.
  • Photography and access restrictions:As this is a research facility, there are areas where photography and entry are prohibited. Please follow the instructions of staff and be careful when using exhibits and equipment.
  • congestion:There may be a lot of visitors on weekends and when events are held, so to avoid the crowds, try to go on a weekday or the first showing so you can enjoy a relaxed tour.
  • Clothes/cold protection:It may be cold at stargazing parties and nighttime events. Please be sure to dress appropriately for the season and protect yourself from the cold.
  • Parking and Transportation:Parking is limited, so we recommend using public transport. Local roads and bus services may be congested during events.
  • Manners around the area:To maintain a quiet environment, please refrain from excessive noise, eating, drinking, or leaving trash on the premises.

Before visiting, be sure to check the official website of the National Astronomical Observatory of Japan's Mitaka Campus for the latest public information, opening hours, access information, and event schedules.

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