Observational and dynamical constraints on the rotation of Comet P/Halley

Details Observational and dynamical constraints on the rotation of Comet P/Halley Observational and dynamical constraints on the rotation of Comet P/Halley

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991icar...93..194s&link_type=abstract

Icarus (ISSN 0019-1035), vol. 93, Oct. 1991, p. 194-225.

Physics

48

Comet Nuclei, Dynamic Characteristics, Halley'S Comet, Rotating Bodies, Constraints, Light Curve, Vega Project, Visual Photometry

Scientific paper

The present search for all rotational states of the P/Halley nucleus which can explain a broad spectrum of observational data notes that the orientation of the long-axis large end of the comet during its encounter with Vega-1 must be reversed from that proposed by Sagdeev et al. (1989). In the modes identified as most likely for the rotational state, the long axis conducts a 3.7-day precessional motion around the space-fixed vector of total rotational angular momentum, while rotating around itself with a 7.3-day period.

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