Rotation of the nucleus of Comet p/Arend-Rigaux

Details Rotation of the nucleus of Comet p/Arend-Rigaux Rotation of the nucleus of Comet p/Arend-Rigaux

Nov 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985icar...64..329j&link_type=abstract

Icarus (ISSN 0019-1035), vol. 64, Nov. 1985, p. 329-335.

Astronomy and Astrophysics

Astronomy

25

Astronomical Photometry, Comet Nuclei, Rotation, Brightness Distribution, Coma, Radiant Flux Density

Scientific paper

Time-resolved charge-coupled device photometry of comet P/Arend-Rigaux shows a cyclic variation in cometary brightness consistent with the periods T1 = 574±5 min (9.58±0.08 hr) and T2 = 407±5 min (6.78±0.08 hr). The variation has a 30% range and is confined to the inner coma. The relative photometric stability of the outer coma indicates that the variations in the inner coma are associated with the nucleus and probably result from its rotation at, or at a multiple of, one of the above periods.

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