Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26a...318..639s&link_type=abstract
Astronomy and Astrophysics, v.318, p.639-652
Astronomy and Astrophysics
Astrophysics
28
Reference Systems, Earth, Celestial Mechanics
Scientific paper
In a recent paper, Souchay & Kinoshita (1996A&A...312.1017S) re-calculated the coefficients of the nutation for a rigid-Earth model due to the main luni-solar potential (coming from J_2_), with respect to the values given by Kinoshita & Souchay (1990CeMDA..48..187K), by taking into account an updated value of the general precession in longitude. In the following we complete this study by computing the coefficients coming from the lunar influence on the second-order geopotential (J_3_, C_2,2_, S_2,2_, J_4_) and those coming from the direct torque exerted by the planets. We notice some corrections to be done with respect to the tables of Kinoshita & Souchay(1990CeMDA..48..187K), and we show that the agreement with computations done by Hartmann et al. (1995, submitted) for the J_3_ part and Williams (1995AJ....110.1420W) for the direct planetary effect is remarkable, although the way of calculation is quite different.
Kinoshita Hajimu
Souchay Jean
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