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About the Secular Acceleration of Mimas

Published online by Cambridge University Press:  07 August 2017

A. Vienne ,
J.M. Sarlat  and
L. Duriez
A. Vienne
Affiliation:
Laboratoire d'Astronomie de l'Université des Sciences et Techniques de Lille-Flandres-Artois, 1 Impasse de l'Observatoire, F 59000 Lille, France
J.M. Sarlat
Affiliation:
Laboratoire d'Astronomie de l'Université des Sciences et Techniques de Lille-Flandres-Artois, 1 Impasse de l'Observatoire, F 59000 Lille, France
L. Duriez
Affiliation:
Laboratoire d'Astronomie de l'Université des Sciences et Techniques de Lille-Flandres-Artois, 1 Impasse de l'Observatoire, F 59000 Lille, France

Abstract

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We explain the high values of the acceleration (≈ 2° cy−2) found in the longitude of Mimas by Kozai and Dourneau when they fit to observations their current theory of the Mimas' motion. In fact, we have found that very long-period terms are missing in these theories; their expansion in powers of t well agrees with the observed acceleration. Effects of tidal dissipation are far smaller and could be determined only after accounting of these long-period terms.

Keywords

Mimasanalytical theorysecular perturbations
Type
Part IV - Planetary Satellites
Information
Symposium - International Astronomical Union , Volume 152: Chaos, Resonance and Collective Dynamical Phenomena in the Solar System , 1992 , pp. 219 - 222
Copyright
Copyright © Kluwer 1992 

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