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Precession model for the nucleus of periodic Comet Kopff (1984)

Sekanina, Z.

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Publication Date: 2011-08-19

Description: The existing data base on certain characteristics of the periodic Comet Kopff, a candidate for a NASA rendezvous mission in the 1990s, is summarized. The comet was discovered in 1906. The data are used to calculate limits to the nuclear mass (0.7-1.5 x 10 to the 16th g), equatorial radius (1.26-1.64 km), and a geometric albedo of 0.08. An equatorial rotation velocity of 8.1-10.7 hr is projected. The estimates are highly dependent on the present photometric data, which in turn depend on the insolation rate, which if different than assumed could mean that all parameters would be revised upward significantly.

Keywords: ASTROPHYSICS

Type: Astronomical Journal (ISSN 0004-6256); 89; 1573-158

Format: text

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