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Seiwa Kogen no Yado
0967-82-3300
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Usage guidance

Seiwa Plateau Astronomical Observatory

Seiwa Plateau Astronomical Observatory is located at an altitude of 700m where the air is clear and the stars are clearly visible.
The lawn plaza also boasts a spectacular view of the 1,000m-high Kyushu Mountain Range.
Enjoy the spectacular view at your leisure during the day, and take in the starry sky at night.

  • Opening hours, closed days, calendar

    • ★★★

      【Opening hours】
      From 14:00 to 22:00
      　Note: The facility may be closed temporarily due to bad weather, etc.

      【closing day】
      Tuesday

      【Upon arrival】
      ・We ask for your cooperation in preventing the spread of the new coronavirus.
      ・It gets cold at night on the Seiwa Plateau, so please prepare warm clothing.　　　　　　　　　　　
      　Be sure to bring warm clothes in winter.
      ・In winter, please come with winter tires on your car.
      ・Along the way, deer, wild boars and other animals may jump out at you.Please be extremely careful when driving.
      ・Your car navigation system may take you through rough roads.If you have any concerns, please contact the Observatory.

  • ☆About the astronomical observation event

    　Using a 50cm diameter Newton-style reflecting telescope, staff members such as "star sommeliers" will guide you through the celestial bodies that change with the seasons.

    ☆彡No reservations are required.Depending on the weather conditions, it may not be possible to hold the observation event.We recommend you inquire about the weather before you set off.
    • Stargazing with a large telescope! If you're lucky, you might even see a shooting star!

      ★★★

      【Estimated observation session times】　
      ★Spring Autumn 19:30 to 22:00
      ★　Summer 20: 00-22: 00
      ★　Winter 19:00 to 22:00　
      *Please call to confirm exact start time
      *It may be canceled depending on the weather.
      *Observation with infants is dangerous, so please contact us in advance.
      【Time required】About 40 to 50 minutes

  • School and group tours

    We also accommodate daytime events for schools and groups, such as field trips and club activities.
    We offer solar observations, workshops, and starry sky commentary using simulation software.
    Please contact us by phone for inquiries and applications.

    • ★★★

      【Tour Menu(Example)】
      ・Stargazing with a simulator(20 minutes)
      ・Large telescope visit(20 minutes)
      ・Solar glass making and solar observation(Half an hour)

      【Visit fee】
      It depends on the age of the participants and the tour contents.Please contact us in advance.

  • Workshops/Rentals

    Seiwa Plateau Astronomical Observatory workshop is held at the Seiwa Plateau Astronomical Observatory.
    Why not give it a try when you visit Seiwa Plateau?
    We are accepting anytime from lunch time to evening.
    *We may not be able to provide information during busy seasons.

    • ★Solar Observation Glass Making Workshop

      Directly observing the sun is very dangerous.
      Why don't you observe the sun by using a film that allows you to see the sun safely?
      After completion, decorate with color pens and stickers.Let's finish with the original sun glass.

      【Content】Sun glass work and sun observation
      【Material cost】300 JPY
      【Time】About 30 minutes

    • ★Star chart making workshop(Out of Operation)

      I would like to accompany you to the starry sky observation. "Constellation quick board"
      You can check which constellation the star is in front of by adjusting the date, time and direction.
      Why don't you make it by hand using a work kit?

      【Content】Constellation quick board making
      【Material cost】300 JPY
      【Time】About 30 minutes
      *Please contact us in advance as we may not be able to accommodate some days.

    • ★Kite making and flying workshop(Out of Operation)

      Just assemble a simple kite kit called a diamond kite.
      Why don't you draw a picture of a star or a picture of Amabie on the front of the kite in hopes of the corona escaping, or make your own original kite?


      　"Contents" Original kite making and kite raising
      　"Material fee" 300 yen
      　"Time" about 30 minutes

    • Information on rental items

      We rent observation equipment.
      ◆small binoculars
      ◆field scope
      ◆recliner chair

      Fare:500 yen each
      Time:2 hours