春秋时期鲁国历法考

《春秋》为鲁国天文历法的研究提供了纵向对勘的资料，春秋时期是由观象授历到科学历法过渡的重要阶段。春秋鲁国人在确定岁首和探索置闰规律上功不可没，但却未能取得重大突破，春秋鲁国历法仍然是一部正自不拘、闰余乖次、有失规范的历法。同时春秋人在天文观测方面亦成果显著。这些都促进了中国传统历法在汉代趋于完善的进程。

Textual Research on the Calendar of State Lu of the Spring and Autumn Period

The Chun Qiu (Spring and Autumn Annals)provides longitudinal material for comparison and collation in the study of the astronomy and calendar of State Lu.The Spring and Autumn Period is an important stage of the transition from observational calendar to scientific calendar.People of State Lu were certainly meritorious in determining the beginning of a year and in probing the laws of installing intercalation,though they failed to make major breakthroughs and their calendar did not conform to the standard.In the meantime,they achieved great successes in their astronomical observation.All these accelerated the perfecting of traditional Chinese calendar in the Han Dynasty.