Official records of solar eclipse in Qing Dynasty

Astronomy and Astrophysics – Astronomy

Scientific paper

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History Of Astronomy, Solar Eclipse, The Qing Dynasty, Official History

Scientific paper

Through overall computation with the modern method, the official records of solar eclipse in the Qing Dynasty are analysed and discussed. The solar eclipse data recorded in Qingshigao, Qingshilu and Qingchao Wenxian Tongkao are thought to be the predicted ones based on the analyses conducted by the senior and the author. The majority of the solar eclipses took place in the Qing Dynasty are included in the official records of solar eclipse. The predicted time for the solar eclipses took place in the period from 1735 through the end of the Qing Dynasty got improved by ~5 minutes, which benefited from Lixiang Kaocheng Houbian. For the Qing Dynasty the precision of the predicted position of the sun, that is relative to the constellation, got improved too, that is mainly owing to the compilation of Lixiang Kaocheng, Lixiang Kaocheng Houbian and Yixiang Kaocheng. In Xiyang Xinfa Lishu, the azimuth for solar eclipse is described according to the horizontal azimuth of the sun. However, in Lixiang Kaocheng and Lixiang Kaocheng Houbian, the azimuth for solar eclipse is determined starting from the apex of the solar disk. The computing method for the azimuth of solar eclipse in Lixiang Kaocheng Houbian is much better than that in Xiyang Xinfa Lishu.

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