Some general features of the dynamics of Halley-type comets

Details Some general features of the dynamics of Halley-type comets Some general features of the dynamics of Halley-type comets

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.250b.413c&link_type=abstract

In ESA Proceedings of the 20th ESLAB Symposium on the Exploration of Halley's Comet. Volume 2: Dust and Nucleus p 413-418 (SEE N

Physics

Comets, Orbital Elements, Orbital Mechanics, Periodic Variations, Center Of Gravity, Libration, Solar System, Transient Oscillations

Scientific paper

Halley-type comets, i.e., those with revolution periods of 20 to 200 yr, are discussed. They can be dynamically defined by the values of their Tisserand invariants with respect to Jupiter, which account for the processes that brought these comets into the present orbits. Long-term integrations of their motion show oscillations of their heliocentric elements when the comets are far from the Sun and the center of their motion is the barycenter of the solar system. The shift from barycentric to heliocentric motion is also responsible for the major changes of orbital elements within a single revolution which, in the case of direct orbits, may follow regular libration patterns with periods of 350 to 400 yr. This is why periods concentrate around 70 yr. .DLN : Killed, superseded by N88-21187

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