On reality of families of periodic and long-periodic comets of Uranus

1Guliyev, AS, 1Guliyev, RA
1Nasir al-Din al-Tusi Shamakhi Astrophysical Observatory, Pirqulu, Azerbaijan
Kinemat. fiz. nebesnyh tel (Online) 2013, 29(2):50-61
Start Page: Dynamics and Physics of Solar System Bodies
Language: Russian

Aphelion distances of known periodic comets in the interval 12—26 a.u. were analyzed. It was established that aphelion of 12 from 38 known comets are concentrated in the zone 19.23—20.91a.u. i.e. near Uranus distance. In author’s opinion it is not random. It was shown by testing method that distant nodes of periodic comet orbits have significant excess in the Uranus moving zone. Same regularity was obtained in the case of analyze of MOID values regarding comet—Uranus. Values of Tisserand constant in the case of Uranus have less dispersion than in cases of Saturn, Jupiter and Earth. It was selected 20 long-period comets which have distant nodes near of the moving zone of Uranus. Judging by values of MOID and distant nodes of comets the planet has possible dynamical connection with selected comet’s group. It was established that distant nodes and perihelion of as periodic as long-periodic comets have excesses in directions 76° and 256°, which conformed qualitatively with eruption conception of comet origin.

Keywords: periodic and long-periodic comets, Uranus

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