The possible existence of an unknown planet in the Neptune-Pluto region

Details The possible existence of an unknown planet in the Neptune-Pluto region The possible existence of an unknown planet in the Neptune-Pluto region

Apr 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987kfnt....3...28g&link_type=abstract

Kinematika i Fizika Nebesnykh Tel (ISSN 0233-7665), vol. 3, Mar.-Apr. 1987, p. 28-33. In Russian.

Physics

3

Neptune (Planet), Orbit Perturbation, Planetary Rotation, Pluto (Planet), Four Body Problem, Halley'S Comet, Orbital Elements, Three Body Problem

Scientific paper

A new cometary family consisting of comets Halley, de Vico, Westphal, Pons-Gambart, Brorsen, Metcalf, and Vaisala 2 has been found. The aphelions of the orbits of these objects are located near the large circle of the heavenly sphere with Omega = 287.3 deg and i = 30.5 deg, indicating the existence of an unknown planet moving in the same plane. The orbital elements of the supposed planet are: T = 1994.0, omega = 286 deg, Omega = 287 deg, i = 30.5 deg, a = 36 a.e., e = 0.11, and n = 1.65 deg/yr. The planet's coordinates at the beginning of 1986 are alpha = 12 hrs 0.06 min and delta = -34.5 deg. This planet may be the source of perturbations in the motion of Uranus, Neptune, and Comet Halley.

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