CCD astrometric observations of Phoebe in 2005-2008

被引：10

作者：

Qiao, R. C. ^{[1
,2
]}

Xi, X. J. ^{[1
,3
]}

Dourneau, G. ^{[4
]}

Shen, K. X. ^{[1
]}

Cheng, X. ^{[1
,3
]}

Tang, Z. H. ^{[5
]}

Wang, S. H. ^{[5
]}

Zhang, H. Y. ^{[1
,3
]}

Qi, Z. X. ^{[5
]}

机构：

[1] Chinese Acad Sci, NTSC, Lintong 710600, Shaanxi, Peoples R China

[2] Chinese Acad Sci, United Lab Opt Astron, Lintong 710600, Shaanxi, Peoples R China

[3] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

[4] Univ Bordeaux, OASU, LAB, CNRS UMR 5804, F-33270 Floirac, France

[5] Chinese Acad Sci, Shanghai Astron Observ SHAO, Shanghai 200030, Peoples R China

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2011年 / 413卷 / 02期

基金：

美国国家科学基金会;

关键词：

astrometry; planets and satellites: general; 9TH SATELLITE; CATALOG; SATURN; EPHEMERIDES; POSITIONS; ERRORS;

D O I：

10.1111/j.1365-2966.2011.18214.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Astrometric observations of Phoebe, the faint ninth satellite of Saturn, with a visual magnitude of 16.5, were performed during four successive oppositions in 2005, 2006, 2007 and 2008. A total of 1173 new observed positions of Phoebe, representing more than 50 per cent of the observational data now available, were obtained during 30 nights of observation involving six missions and three telescopes. A comparison of our observed positions with the JPL Phoebe ephemeris shows the high quality of our observations, which have an accuracy of about 100 mas. Moreover, our observations appear to be consistent with this ephemeris within only about 50 mas.

引用

页码：1079 / 1082

页数：4

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