Astrometric observations of triton

Astrometric observations of triton
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DOI:
10.1111/j.1365-2966.2007.11526.x
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发表时间:
2007-04
影响因子:
4.8
通讯作者:
R. Qiao;Y. Yan;K. Shen;G. Dourneau;X. Xi;X. Cheng;S. H. Wang;Zheng-hong Tang;Jiren Liu
R. Qiao;Y. Yan;K. Shen;G. Dourneau;X. Xi;X. Cheng;S. H. Wang;Zheng-hong Tang;Jiren Liu
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
R. Qiao;Y. Yan;K. Shen;G. Dourneau;X. Xi;X. Cheng;S. H. Wang;Zheng-hong Tang;Jiren Liu

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给出了1996年、2003年、2005年和2006年海王星冲的海王星卫星海卫一的天体测量位置。943个观测位置是在156厘米反射镜的卡塞格伦焦点上获得的。在我们的还原中,选择了最新的恒星目录UCAC 2,以确保适当的天体测量校准。我们观察到的位置相比,从喷气推进实验室和IMCCE星历提供的理论位置。观测值减去计算残差的s.d. 0.04角秒量级的值。
Astrometric positions of the Neptunian Satellite Triton are given for the opposition of Neptune for the years 1996, 2003, 2005 and 2006. The 943 observed positions were obtained at the Cassegrain focus of a 156-cm reflector. In our reduction, the up-to-date catalogue of stars UCAC2 was chosen to ensure a proper astrometric calibration. Our observed positions are compared to theoretical positions provided from JPL and IMCCE ephemerides. The observed minus calculated residuals have s.d. values of the order of 0.04 arcsec.