Certain periodicities in the motion of Comet Halley with respect to the center of mass

Details Certain periodicities in the motion of Comet Halley with respect to the center of mass Certain periodicities in the motion of Comet Halley with respect to the center of mass

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987kosis..25..768s&link_type=abstract

Kosmicheskie Issledovaniia (ISSN 0023-4206), vol. 25, Sept.-Oct. 1987, p. 768-780. In Russian.

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Brightness Distribution, Center Of Mass, Halley'S Comet, Comet Nuclei, Rotation

Scientific paper

Periodicities in three series of ground-based observations of Comet Halley are investigated. One series consists of brightness measurements during January-February 1984; the other two series are residuals of (O-C) observations of the right ascension and declination of the comet from September 1985 to February 1986. Harmonic analysis has revealed the periodic components of these series. In the first series, a component with a period of 2.36 + or - 0.084 d has been detected which is explained by the self-rotation of the comet nucleus. Components with periods of 10.0 + or - 2.3 d and 9.1 + or - 2 d, respectively, were found for sections of the second and third series from December 12, 1985 to January 18, 1986.

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