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Title:
Secular Trends in the Mean Longitudes of Planets Derived from Optical Observations
Authors:
Kolesnik, Yuri B.; Masreliez, C. Johan
Affiliation:
AA(Institute of Astronomy, Russian Academy of Sciences, ulitsa Pyatnitskaya 48, 119017 Moscow, Russia ), AB(The EST Foundation, 3209 West Lake Sammamish Parkway, NE, Redmond, WA 98052 )
Publication:
The Astronomical Journal, Volume 128, Issue 2, pp. 878-888. (AJ Homepage)
Publication Date:
08/2004
Origin:
UCP
Astronomy Keywords:
Astrometry, Celestial Mechanics, Ephemerides, Reference Systems, Solar System: General
DOI:
10.1086/422344
Bibliographic Code:
2004AJ....128..878K

Abstract

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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Database: Astronomy
Physics
arXiv e-prints