Guo Shoujing (1231–1316) was a prominent Chinese astronomer, engineer, and hydrologist during the Yuan Dynasty. He is best known for his work in advancing astronomical observation and developing more accurate calendars. Guo played a crucial role in the construction of large astronomical instruments, including the armillary sphere, and improved the accuracy of measurements for time and celestial events.
2012 Guo Shou-Jing is a commemorative coin issued by China to celebrate the 700th anniversary of the death of Guo Shou-Jing, a prominent Chinese astronomer, engineer, and hydraulic engineer during the Yuan Dynasty. Guo Shou-Jing is best known for his work in astronomy, especially for creating the "Shoushi Calendar," which improved the accuracy of the Chinese lunar calendar. He also made significant contributions to water conservancy projects and agricultural irrigation systems.
Kuo Shou Ching is a lunar impact crater located on the Moon's far side. It is named after Kuo Shoujing, a Chinese astronomer and hydrologist from the Yuan Dynasty who lived in the 13th century. Like many craters on the Moon, Kuo Shou Ching is characterized by its circular shape, a rugged and pockmarked surface, and a surrounding ring of raised terrain. It is relatively large and has a well-defined inner wall.
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