On the rotation of the nucleus of the Great Comet of 1744

Details On the rotation of the nucleus of the Great Comet of 1744 On the rotation of the nucleus of the Great Comet of 1744

Jan 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991icar...89...65p&link_type=abstract

Icarus (ISSN 0019-1035), vol. 89, Jan. 1991, p. 65-72.

Computer Science

4

Comet Nuclei, Comet Tails, Rotation, Solar Radiation, Halley'S Comet, Rotating Bodies, Surface Properties, Comets, Comet Tails, Comet Nuclei, Rotation, Ejection, Outgassing, Jets, Theoretical Studies, Period, Spin, Comparisons, Halley, Models, Diagrams

Scientific paper

Assuming that the discrete synchronic formations of the multiple tail of the Great Comet of 1744 represents repetitive ejections of material from discrete nucleus-surface sources which are active during the cometary day and diurnally dormant, an analysis is conducted of the times of ejection by comparing the Cheseaux (1744) drawing with a network of theoretical synchrones. The times thus derived are consistent with a constant rotation period of the nucleus of 4.8 + or - 0.4 days; while this result is for the case of three sources, with discontinuous activity of at least one, the alternative possibility of a single source that is active at every rotation is also considered.

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