Islamic Astronomical Tables in China The Sources for the Huihui li
Islamic Astronomical Tables in China The Sources for the Huihui li
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DOI:
10.1007/978-94-015-9862-0_2
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发表时间:
2002-12
期刊:
影响因子:
--
通讯作者:
B. Dalen
中科院分区:
文献类型:
--
作者:
B. Dalen
In the first decade of the thirteenth century, Chinggis Khan initiated the rapid expansion of the Mongol territory from the steppes on the northern border of China to a world empire that covered the largest part of the Eurasian continent. By the 1260s, the empire included both the Iranian part of the Islamic world and China, and travel between the various parts of the empire was safe and relatively quick. This not only allowed commerce to flourish, but also made possible an exchange of craftsmen and scholars and of scientific knowledge. Thus it is known that a Chinese astronomer named Fu Mengchi or Fu Muzhai was active at the astronomical observatory in Maragha (northwestern Iran), which was founded in 1259 by the Ilkhan ruler Hiilegii Khan, grandson of Chinggis. It is very probable that this astronomer provided the technical details of the so-called Chinese-Uighur calendar, a lunisolar calendar of Chinese type described in many Islamic astronomical handbooks from the Mongol period. This calendar was actively used in the Iranian world for at least a century after the Mongol conquest and has left traces on Iranian almanacs up to even the 20th century in the form of the use of the Chinese duodecimal animal cycle. 1 On the other hand, the official annals of the Yuan Dynasty, whose first emperor was Hiilegii's brother Khubilai Khan (1260-1294), inform us that a" westerner"(ie Muslim) named Zhamaluding2 came to China in 1267 and offered to the emperor seven astronomical instruments and an astronomical handbook or almanac. Yamada (1980, 48-58) and Yabuuti (1997, 12) identify Zhamaluding as the astronomer Jamal aI-DIn MuJ: lammad ibn Tahir ibn MuJ: lammad al-Zaydi from Bukhara, who served the Great Khan Mongke (1251-1259) in the Mongol capital Karakorum (see also SaYlh 1960, 191-192). The instruments presented by Zhamaluding are described in detail in the Yuan annals and have been identified by Tasaka (1957), Hartner (1950) and Miyajima (1982), partially on the basis of the Chinese transliterations of their original Persian names. Zhamaluding's astronomical handbook or almanac, which is referred to in Chinese as Wannian Ii (" Ten Thousand Year Calendar" or" Eternal Calendar"), 3 is not extant, but scattered remarks concerning it in various sources make clear that it was of Islamic type and that it was officially distributed in China. In 1271, Zhamaluding became the first director of the newly founded Islamic Astronomical Bureau, which would continue to operate parallel to the Chinese Astronomical Bureau for almost four centuries. During most of this time the results of calculations according to Islamic astronomical methods were compared with the contemporary official Chinese system. Islamic astronomy had a good reputation among the Chinese because of its theory of planetary latitudes, which did not exist in Chinese astronomical systems, and its accurate predictions of eclipses. However, the direct influence of Islamic astronomy seems to have been limited. The fundamental procedures in the official astronomical system of the Yuan Dynasty, the Shoushi Ii by Guo Shoujing4 (1281), are all essentially of