Gaocheng Astronomical Observatory, Astronomical observatory in Dengfeng, China
The observatory structure features a square brick platform reaching 9.46 meters in height with stairs on the northern side leading to the upper level.
Built in 1276 under Emperor Shizu of the Yuan Dynasty, the observatory served as the central point among 27 observatories established across China.
The observatory houses the Shigui instrument, consisting of 36 square stones with parallel waterways used for celestial measurements and calendar calculations.
Located near Mount Songshan, the observatory maintains public access through management by the Dengfeng Municipal Bureau of Culture Relics.
Measurements taken at this location determined the tropical year with only 26 minutes deviation from current calculations, preceding the Gregorian calendar by 300 years.
Location: Henan
Part of: Historic Monuments of Dengfeng in “The Centre of Heaven and Earth”
GPS coordinates: 34.40241,113.14071
Latest update: May 17, 2025 10:34
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