Surface features and the rotation state of Halley's comet nucleus

Details Surface features and the rotation state of Halley's comet nucleus Surface features and the rotation state of Halley's comet nucleus

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989angeo...7..129a&link_type=abstract

Annales Geophysicae (ISSN 0980-8752), vol. 7, April 1989, p. 129-140.

Physics

9

Comet Nuclei, Giotto Mission, Halley'S Comet, Surface Properties, Image Processing, Image Rotation, Vega Project, Comets, Halley, Comet Nuclei, Surface, Features, Rotation, Oscillations, Shape, Spacecraft Observations, Period, Imagery, Photographs, Diagrams, Vega 1 Mission, Vega 2 Mission, Giotto Mission, Image Processing, Analysis, Hypotheses

Scientific paper

Observations obtained by the Vega 1 and 2 spacecraft during flybys on March 6 and 9, 1986 provide a description of the shape and movement of the Comet Halley nucleus. The results confirm a previous determination of the long-axis orientation, and surface details of the contours are presented. It is found that the rotation state of the nucleus is dominated by the motion (with a period of 53.5 h) around an axis which appears to be perpendicular to the long axis.

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