Secular variations of the dates of activity maxima of meteor showers

Details Secular variations of the dates of activity maxima of meteor showers Secular variations of the dates of activity maxima of meteor showers

Oct 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983avest..17..116b&link_type=abstract

(Astronomicheskii Vestnik, vol. 17, Apr.-June 1983, p. 116-121) Solar System Research (ISSN 0038-0946), vol. 17, no. 2, Oct. 198

Astronomy and Astrophysics

Astronomy

Gravitational Effects, Meteoroid Showers, Orbit Perturbation, Planetary Gravitation, Secular Variations, Eccentricity, Perihelions

Scientific paper

It is shown that the secular variation of the date of maximum activity of a meteor shower due to planetary perturbations occurs at the rate of variation of the longitude of the ascending node of the orbit of the swarm only when the radius vector of this node is close to its maximum or minimum value. For small inclinations the shift in the date of the activity maximum is determined by the combined variation of the longitude of the perihelion and the eccentricity of the orbit of the swarm. The theoretical calculations of the shifts in the activity maxima of the Leonid, Quadrantid, Bielid, Geminid, eta Aquarid, and Orionid meteor showers agree satisfactorily with the observations.

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