摘要
数天史学家钱宝琮和日本汉学家新城新藏研究春秋长历,认为我国在春秋末年(约公元前500年)可能已施行十九年插入七个闰月了.但古人用肉眼测定十九年七闰的闰周是有困难的.笔者根据古人测定的日月在天球上视运动的平率,即"日月东行,而日行迟,月行疾,……日日行度,月日行十三度十九分度之七".模拟古人的宇宙观和计预法,算得了十九年七闰的闰周.和采用哥白尼体系和月亮会合运动方程式算得的结果完全相同.
The math-astro historian Qian Baocong and the Japanese Sinologist Shinzo Shinjo maintained after studying the calendar in Chun Qiu(Spring and Autumn Annals)that the intercalation cyele of'7 intercalary months in 19 years'had been probably applied in the last years of the Spring and Autumn period,approx.500 B.C..But,the observational determination of this cycle by the ancient Chinese with naked eyes must have been quite difficult,Based on the mean daily rates——'the sun and the moon move cast with the former slower than the latter in the ratio of ?'——of the solar and lunar apparent motion in the celestial sphere determined by the antients,the author of this paper have deduced the intercalation cycle.By applying the Copernican System and the conjunction equations for lunar movements,the same result can be reached.
出处
《中国科技史料》
CSCD
1992年第3期14-17,共4页
China Historical Materials of Science and Technology
