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  • April 2025

    【5 days】 Evening - The Moon and Mars approach each other
  • May 2025

    【6th】 We are open on substitute holidays.
    【7 days】 Saturn's Rings Disappear
  • June 2025

    【1 day】 Venus at Greatest Western Elongation
Astronomical observation partyWe carry out every day.(Closed on Tuesdays)
*Be sure to call the observatory to check the weather before you leave.
 It starts at 19:30.
*If there are many people making reservations, such as on weekends, we will split the reservation into multiple sessions.
*The time may change depending on the weather.
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You can see different celestial bodies in each season!Please be sure to inquire about the weather at the observatory before coming.
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Past calendar

  • March 2024

    Events will be added at a later date
  • February 2024

    【During the period】
    “Midwinter kotatsu club” in progress
    For more information, please check the announcement page.
  • January 2024

    【1 day】 New Year's Day Kanbokai
    The parking lot and lawn will be open to the public from 6:00 to 8:00 in the early morning.
    Enjoy the first sunrise of the new year.
    The expected time for the first sunrise of the year at the observatory is around 7:20.

    【Four days】 Maximum day of the Shibungid meteor shower
    One of the three major meteor showers, the Shibungid meteor shower, will reach its peak.
  • December 2023

    【15th day】 The Geminid meteor shower is at its peak

    【The 23rd】 The Ursa Minor meteor shower is at its peak
  • November 2023

    【The 13th】 Northern Taurus meteor shower maximum
    【18th】 Maximum Leonids meteor shower
  • October 2023

    【The 22nd】 Orionids meteor shower maximum

    【27th】 later month(13th night)

    【29th tomorrow morning】 partial lunar eclipse
    Part of the moon is hidden in the Earth's shadow
    The maximum eclipse will be around 5:14 tomorrow morning.
  • September 2023

    【29th】 Mid-Autumn Harvest Moon
    A moon viewing party will be held at the observatory.
    In addition to the full moon, you can enjoy Saturn and bright stars.
    On the day of the event, a special menu of zenzai and matcha sets will be sold by reservation.
    We look forward to your reservations and your visit.
    Moon viewing
    Event date:September 29, 2020(Friday)
     Time :From 19:30 to 21:30(Reception starts at 19:00)
    Participation fee:500 yen for high school students and above, 300 yen for elementary and junior high school students, free for preschoolers
    Reservation required.:We accept inquiries by phone or email.
           Phone number 0967-82-3300
           Email ymt-astroseiwa@town.yamato.kumamoto.jp
    Other:Zenzai/Matcha set (reservation required, first 30 people) Price: 600 yen
    Please feel free to contact us if you have any questions.