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A new method for compiling up a meridian catalog is presented in this paper. According to this method, after making the precession, nutation, aberration and proper motion corrections for the recording times of the meridian transit observations of all the stars, the influence of the changes in the clock correction can be removed by using the observations of the common stars of different nights. Then, the observations are all reduced to those of a certain night, near the beginning of the year, with respect... A new method for compiling up a meridian catalog is presented in this paper. According to this method, after making the precession, nutation, aberration and proper motion corrections for the recording times of the meridian transit observations of all the stars, the influence of the changes in the clock correction can be removed by using the observations of the common stars of different nights. Then, the observations are all reduced to those of a certain night, near the beginning of the year, with respect to the mean position of the beginning of the year and the corrections for the positions with respect to the mean position of the beginning of the year can be directly calculated by averaging the observations many times. It is unnecessary to use the traditional chain method and to observe stars in fixed groups by daylight. 本文叙述了编制子午初始星表的满星平差方法。即先把所有星的中天观测记录时刻作岁差、章动、光行差和自行的修正后,采用不同观测夜之间的共同星观测值作连接过渡,消除钟差变化的影响;都归算到年首附近某一夜晚相对于年首平位置的观测,再取多次观测的平均、直接解算出对年首平位置的改正值。这种方法不需要采用传统的连锁观测,也不需要在白天进行观测,并打破了定组观测的惯例。 The year of king Wu's conquest over Shang is the most difficult chronological problem. There are some accounts of the war against king Zhou in the historical documents. But a lot of records were written by later generations. These records spanned a long time, and some of them were contradictory each other. If someone wants to investigate the date of the Zhou conquest of Shang on the base of celestial phenomena recorded in the documents, he has to eliminate the false and retain the true and then try to find a... The year of king Wu's conquest over Shang is the most difficult chronological problem. There are some accounts of the war against king Zhou in the historical documents. But a lot of records were written by later generations. These records spanned a long time, and some of them were contradictory each other. If someone wants to investigate the date of the Zhou conquest of Shang on the base of celestial phenomena recorded in the documents, he has to eliminate the false and retain the true and then try to find a method to reach unanimity of different statements. Otherwise, the records of five planet alignment during the war against king Zhou and the Sui Ding (Jupiter's meridian transit) in the inscription of the Western Zhou bronze Li Gui are very important materials for discussing the year of expedition against the king of Zhou. They should be brought to researchers' great attention. Celestial phenomena and Five Planet alignment recorded in the documents, the dating phases of the moon and Sui Ding (meridian transit of Jupiter) of Western Zhou bronze's inscriptions are discussed in this paper. A table of Jupiter's transit on day Jia Zi (the first day of a 60 days' cycle) and several cases of five planets alignments are given in this paper too. The author wishes that they could be useful to the study of the year of king Wu's expedition. 因为历史上缺少直接记载 ,武王克商之年是历史年代学研究中的一个难题 ;而记述有关伐纣天象和历日的文献 ,多出于后人之手 ,时间跨度很大且互相矛盾。因此 ,要利用这些文献记载的天象考查克商的年代 ,必须去伪存真并设法把许多不同说法统一起来。作者认为 ,文献记载的武王克商时出现的五星会聚现象和新出土西周铜器利簋铭文记载的“岁鼎”(木星中天 ) ,对于讨论克商年代都很重要 ,应该予以重视。文章对文献记载的伐纣天象 ,五星聚 ,西周铜器月相纪日和“岁鼎”进行了讨论。
meridian transit
中天
According to this method, after making the precession, nutation, aberration and proper motion corrections for the recording times of the meridian transit observations of all the stars, the influence of the changes in the clock correction can be removed by using the observations of the common stars of different nights. 即先把所有星的中天观测记录时刻作岁差、章动、光行差和自行的修正后,采用不同观测夜之间的共同星观测值作连接过渡,消除钟差变化的影响; 短句来源 相似匹配句对
Simulation of the Stellar Meridian Observation with Photon Counter on Transit Instrument 恒星子午光子计数观测的计算机模拟方法 短句来源 GPS and Transit 全球卫星定位系统与公共交通 短句来源 Transit Visas 过境签证 短句来源 ABSOLUTE DETERMINATION OF THE TRANSIT AZIMUTH THROUGH PRIME VERTICAL AND MERIDIAN OBSERVATIONS 用卯酉圈观测绝对测定子午仪的方位角 短句来源 Discussing the Meridian and Collateral 论经络 短句来源 
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Additionally, motion in right ascension can be achieved by meridian-transit scanning.
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