| 低纬子午环绝对测定瞬时方位差方法的改进（Ⅰ） |
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| 引用本文： | 彭青玉.低纬子午环绝对测定瞬时方位差方法的改进（Ⅰ）[J].天文研究与技术,1996(4). |
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| 作者姓名： | 彭青玉 |
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| 作者单位： | 中国科学院云南天文台 |
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| 摘 要： | 利用低纬子午环在卯酉圈东西两边同时观测得到的一对赤纬近似相等的恒星的天顶距，可以用来绝对确定仪器的瞬时方位差。这一方法不必对方位差的变化规律作任何假设，不需要改变现有的仪器设计方案。这将有利于改善低纬子午环的观测系统。
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| 关 键 词： | 低纬子午环，瞬时方位差 |
The Improvement of Determination of the Instantaneous Azimuth Error of Lower Latitude Meridian Circle(LLMC) |
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| Peng Qingyu.The Improvement of Determination of the Instantaneous Azimuth Error of Lower Latitude Meridian Circle(LLMC)[J].Astronomical Research & Technology,1996(4). |
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| Authors: | Peng Qingyu |
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| Abstract: | By using the zenith distances of a pair of stars which have the almost same declinatons and are observed at the almost same moment in the east and west of the prime vertical, the instantaneous azimuth error of the instrument can be determined absolutely. In comparison with the original method, there is no superposition of the variation of the azimuth error in the present method and the original design of the instrument is not needed to be changed.Therefore, the observational system of LLMC is expected to be improved. |
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| Keywords: | LLMC Instantaneous azimuth error |
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