The Sun Theory And Science Value Of Richan Lizhi

Richan lizhi is a series of large calendar in the late Ming Dynasty. It standfor a great change in the history of the Chinese calendar. As star theory ofChongzhen Lishu,Richan Lizhi plays a very important part in ChongzhenLishu.This paper mainly uses literature analysis to analyze the specificcontent of Richan Lizhi based on a comprehensive system of research andanalysis. And it shows that Richan Lizhi constructs the western method-basedstar theory in four aspects. And it further conducts a comprehensive analysisand interpretation of Richan Lizhi content on astronomy and mathematics andso on. The paper discusses its value and influence.This article includes serevls parts.The first charter gives a brief overview of the Chongzhen Lishu.The second chapter analyzes specific observation and calculationmethods of Richan Lizhi in detail. First of all,brief introduction of the authorsand the theory of the Chongzhen Lishu and prepare knowledge.The third chapter analyse Richan Lizhi of sun travel model parameter ofdetermine, clued the tallest of sun and Mengqi Cha.The fourth chapter studies meter instrument and function of ChongzhenLishu. As the conclusion part of this article,the fifth chapter describes thetheoretical value, practical value, important of astronomy in the Ming andQing Dynasties and the deficiencies of Richan Lizhi.