Space Wonder Exploration: 100th Anniversary of Public Observatories Nationwide Simultaneous Stargazing Event - Solar System Marathon
Experience

Space Wonder Exploration: 100th Anniversary of Public Observatories Nationwide Simultaneous Stargazing Event - Solar System Marathon

Japanese name:宇宙ふしぎ探検「公開天文台100周年記念 全国一斉観察会 太陽系マラソン」

📅 Sat, Nov 21, 2026

📍 Tottori, Tottori

About this event

Commemorating the 100th anniversary of public observatories, the nationwide simultaneous observation event "Solar System Marathon" will be held at Saji Astro Park in Tottori City. During the daytime, observers will use a 103 cm telescope to view Mercury and Venus shining against the blue sky. At night, the Moon, Saturn, Uranus, and Neptune are scheduled to be observed using the same 103 cm telescope. Furthermore, late-night views of Mars and Jupiter will reportedly be streamed live on YouTube. This event will be an excellent opportunity to complete observations of celestial bodies across the solar system. In case of rain or cloudy weather, the daytime observation session will be cancelled, and the evening session will switch to a planetarium screening. The participation fee is 600 yen for general admission (high school students and older) and 200 yen for elementary and junior high school students (covering admission and stargazing fees). For the evening session, bringing long-sleeved outerwear or warm clothing is recommended. Both the daytime and nighttime sessions each have a capacity limit of 40 participants, and advance registration is required. Applications can be made to Saji Astro Park (Tel: 0858-89-1011).

Source website (Japanese) ↗

Venue

Saji Astro Park

1071-1 Takayama, Saji-cho, Tottori, Tottori 689-1312

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