Secular trends in the mean longitudes of planets derived from optical observations

被引：5
作者：
Kolesnik, YB
Masreliez, CJ
机构：
[1] Russian Acad Sci, Inst Astron, Moscow 119017, Russia
[2] EST Fdn, Redmond, WA 98052 USA
来源：
ASTRONOMICAL JOURNAL | 2004年 / 128卷 / 02期
关键词：
astrometry; celestial mechanics; ephemerides; reference systems; solar system : general;
D O I：
10.1086/422344
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
About 240,000 worldwide optical observations of the Sun, Mercury, and Venus, accumulated during the entire era of classical astrometry from James Bradley up to the present, are used to analyze the secular longitude variations of the innermost planets. A reduction method relating historical planetary observations to the Hipparcos reference frame is presented. Secular trends in the longitudes of the Sun, Mercury, and Venus with respect to the ephemeris DE405 are estimated for the time span 1750-2000.
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页码：878 / 888
页数：11
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