Analytical Development of Rigid Mercury Nutation Series |
| |
| Authors: | G Carpentier F Roosbeek |
| |
| Institution: | (1) B-1180 Bruxelles, Belgium, e-mail |
| |
| Abstract: | In this paper, series of a rigid model of Mercury nutations are computed. The method used is based on the calculation of the forces produced by the Sun on Mercury as considered as a rigid body. In order to take into account the indirect effects coming from the orbit perturbations of Mercury, we used the ephemerides VSOP87 (Bretagnon and Francou, 1988). Due to non-negligible difference between the principal moment of inertia A and B in the case of Mercury, we compute also terms due to the triaxiality in addition to the general terms coming from J
2. With a truncation level of 10
–3 mas (milliarcsecond), related to the present-day precision of the Mercury precession constant, 173 terms in longitude (  sin  ) and 166 terms in obliquity () are computed. The value of the dynamical flattening used is H
D = (C – A)/C = 2.3 × 10–4 (Anderson, 1987). |
| |
| Keywords: | nutation precession Mercury |
| 本文献已被 SpringerLink 等数据库收录！ |
|
