Article ID: CBB000933531

The Shicha Algorithm for Lunar Eclipses in Ancient China (2008)

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Tang, Quan (Author)
Qu, Anjing (Author)


Ziran Kexueshi Yanjiu (Studies in the History of Natural Sciences)
Volume: 27
Pages: 301--308


Publication Date: 2008
Edition Details: [Translated title.] In Chinese.
Language: Chinese

Abstract The Shicha of lunar eclipse is a difference between moments of full moon and middle eclipse. The first algorithm designed for Shicha is found in Yixing's Dayan li (a calendar-making system of Dayan, 724). In some calendar-making systems in the Song and Yuan Dynasties, such algorithms are also found. Scholars, such as Zhu Zaiyuconsidered that Shicha of lunar eclipse in ancient China was a correction of the moon parallax. Since the moon parallax has nothing to do with the lunar eclipse, the Shicha algorithm has been taken as a meaningless method, and criticized by historians of astronomy. According to a constructed theoretical model of Shicha of lunar eclipse, a conclusion shows that it is necessary to calculate the Shicha of lunar eclipse, and the Shicha algorithm in ancient China is not designed for the correction caused by the moon parallax.

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Authors & Contributors
Tang, Quan
Qu, Anjing
Guan, Yuzhen
Parpola, Asko
Yuan, Min
York, Tom J.
Journals
Ziran Kexueshi Yanjiu (Studies in the History of Natural Sciences)
Journal of Dialectics of Nature
Journal for the History of Astronomy
History of Science in South Asia
Nei Menggu Shifan Daxue Xuebao (Ziran Kexue Ban)
Chinese Journal for the History of Science and Technology
Publishers
Hempen Verlag
Ke xue chu ban she
Champion
Concepts
Astronomy
East Asia, civilization and culture
Calendars
Cosmology
Solar eclipse
Eclipses; transits; occultations; conjunctions
People
Liu Hong
Time Periods
Ancient
Medieval
Yuan Dynasty (China, ca. 1260-1368)
Jin Dynasty (China, 265-420)
Song-Yuan dynasties (China, 960-1368)
Tang dynasty (China, 618-907)
Places
China
India
Greece
Mesopotamia
Middle and Near East
Egypt
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