抄録
The Chin Shu or Official History of the Chin Dynasty,130 volumes in total, was finished by Fang Hsüan-ling et al.in A.D.635.Astronomical records are included in its astronomical chapters. The data cover the periods from A.D.221 to A.D.420, including the times of the Three Kingdoms, the Former and Later Chin Dynasties. Among the whole records, the solar eclipses, the moon's occultations of the planets and the trespassings of the planets with one another are examined numerically by the method of astronomical chronology.
The following conclusions are obtained.
(1) Among 82 solar eclipses; 49 are proved to have been visible as eclipsed either at Loyang (capital of both the Wei and the Former Chin Dynasties) or at Nanking (capital of the Later Chin Dynasty).
Visibility of the recorded eclipses is 49/82 = 60 percents.
(2) Among 52 records of the moon's trespassings against at the planets,19 occultations and 25 trespassings are identified. So identification rate of the records is 44/54 = 81 percents.
(3) Among 46 records of close encounters of the planets with one another, 36 are proved to be reasonable. So identification rate of the data is 36/46 = 72 percents.
(4) The remaining percentages of the above records are classified as questionable because of their impossibility of identification. However, some of them turn reasonable if we try a tiny revision, for instance, change the date or the planet's name in the records. This proves to be a result of copying errors. In the case of solar eclipses, ancient technique of eclipse prediction may be another cause of poor coincidence.
