| 由卫星的历表位置测定恒星位置 |
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| 引用本文： | 彭青玉,叶彬浔.由卫星的历表位置测定恒星位置[J].空间科学学报,1998,18(1):91-93. |
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| 作者姓名： | 彭青玉 叶彬浔 |
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| 作者单位： | 中国科学院云南天文台!昆明，650011(彭青玉，冒蔚)，中国科学院北京天文台(叶彬浔) |
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| 摘 要： | 利用云南天文台1m望远镜上的1号CCD的SRT（分离读出技术）观测天王星卫星的资料，相对卫星的历表位置测定了暗恒星的位置，测定精度与目前国外天然卫星位置测定时的最好精度相当．
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| 关 键 词： | 天体测量 行星位置 天然卫星 |
POSITIONAL DETERMINATION OF A STAR WITH RESPECT TO THE EPHEMERIDES OF URANIAN SATELLITES |
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| PENG Qingyu, MAO Wei.POSITIONAL DETERMINATION OF A STAR WITH RESPECT TO THE EPHEMERIDES OF URANIAN SATELLITES[J].Chinese Journal of Space Science,1998,18(1):91-93. |
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| Authors: | PENG Qingyu MAO Wei |
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| Abstract: | This paper presents an observational routine to determine precisely the barycentric positions of the outer planets (Saturn, Uranus, and Neptune) by CCD observations. It is required according to the routine that the CCD observations are obtained with both a long-focus telescope which is used to observe some satellites of an outer planet and a meridian circle which works in a CCD drift scanning manner. Furthermore, the observations obtained with No. 1 CCD on 1-meter te1escope at the Yunnan Observatory is used to determine the positions of two faint stars with respect to the positions of the ephemerdes of Uranian satellites. The results show that the positional precision for each star is comparable to the best observations of Uranian satellites. |
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| Keywords: | Astrometry Planetary position Natural satellites |
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