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The chaotic obliquity of the planets

descriptionPublicationkeyboard_double_arrow_right Article 01 Feb 1993 France Publisher:Springer Science and Business Media LLCJournal:Nature, volume 361, pages 608-612 (issn: 0028-0836, eissn: 1476-4687,

Authors: Laskar, J.; Robutel, P.;

doi: 10.1038/361608a0

The chaotic obliquity of the planets

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Abstract

Numerical study of the global stability of the spin-axis orientation (obliquity) of the planets against secular orbital perturbations shows that all of the terrestrial planets could have experienced large, chaotic variations in obliquity at some time in the past. The obliquity of Mars is still in a large chaotic region, ranging from 0° to 60°. Mercury and Venus have been stabilized by tidal dissipation, and the Earth may have been stabilized by capture of the Moon. None of the obliquities of the terrestrial planets can therefore be considered as primordial.

Country

France

Related Organizations

French National Centre for Scientific Research
France
Sorbonne University
France
Laboratoire d'informatique de Paris 6
France
University of Lille
France
Institut National des Sciences de l Univers
France

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Keywords

[SDU] Sciences of the Universe [physics], [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], [SDU]Sciences of the Universe [physics], [SDU.ASTR] Sciences of the Universe [physics]/Astrophysics [astro-ph], 530, 520

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