Study on Secular Change of the Earth’s Rotation Rate Based on Solar Eclipse Observation Records on October 13, 443 BC-Reference-Cited by-同舟云学术

Study on Secular Change of the Earth’s Rotation Rate Based on Solar Eclipse Observation Records on October 13, 443 BC

Published:2023-06-01 Issue:2 Volume:58 Page:56-62
ISSN:2083-6104
Container-title:Artificial Satellites
language:en
Short-container-title:

Author:

MA Lihua¹

Affiliation:

1. National Astronomical Observatories, Chinese Academy of Sciences , Beijing , P.R. China

Abstract

ABSTRACT An observation of a solar eclipse that occurred on October 13, 443 BC during the reign of the Duke Ligong of Qin was recorded in the Twenty-Four Histories (China’s dynastic histories from remote antiquity till the Ming Dynasty). With modern astronomical planetary ephemeris, the observation records were studied. The results showed that the eclipse probably occurred around sunset in Yongcheng, the capital of Qin, where the sunset time was exactly between the first contact stage (partial eclipse begins) and the fourth contact stage (partial eclipse ends) of the eclipse. Furthermore, secular change of the earth’s rotation rate at that time is investigated in this work.

Publisher

Walter de Gruyter GmbH

Link

https://www.sciendo.com/pdf/10.2478/arsa-2023-0005

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