夏仲康日食年代确定的研究史略

夏仲康日食年代的确定工作,已经进行了１３００余年,得出了１４个完全不同的结果,相互间差异很大。文章介绍了每个结果的研究背景和研究方法,并逐个进行了评价,指出这个问题还远远没有解决。文章提出了进一步解决这个问题的三个基本出发点：（１）认定它是夏代的一次日全食观察记录,至少它是大食分日食的观察记录;（２）必须利用现代的日月历表,对于公元前第２０至２２世纪之间３００年,在洛阳可见日食重新全部计算出来,并

RESEARCH ON DETERMINING THE AGE OF ZHONG-KANG SOLAR ECLIPSE IN XIA DYNASTY

The Research on determining the age of Zhong-Kang Solar Eclipse-Shu Ching Eclipse-in Xia Dynasty has been done for more than 1300 years, which has produced 14 different results. This paper intends to introduce the background and the research method of each result. It also points out that this problem is still far from being solved. The paper suggests three fundamental starting points for obtaining a better solution of the problem. 1. To prove that it is a total solar eclipse or at least a major eclipse factor. 2. To make use of the modern ephemeris of the sun and the moon and sift all the data of the solar eclipse calculated in Luoyang during the period from the 20th century to the 22nd century BC. 3. To discuss the possibility of reducing or eliminating the effect after considering the influence of secular variation of the earth rotation rate and acceleration of the earth and moon system.