Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987aj.....93.1542j&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 93, June 1987, p. 1542-1548.
Astronomy and Astrophysics
Astronomy
39
Astronomical Photometry, Charge Coupled Devices, Comet Nuclei, Encke Comet, Albedo, Astronomical Models, Brightness, Rotation, Comets, Encke, Ccd Methods, Photometry, Astronomy, Brightness, Models, Rotation, Comet Nuclei, Comparisons, Earth-Based Observations, Data, Telescope Methods, Calculations, Analysis, Magnitude, Lightcurve
Scientific paper
The authors present new photometry of Comet P/Encke taken near aphelion. Persistent cyclic variations in the brightness of the comet are attributed to rotation of the nucleus, with a most probable rotation period near 22.4 hr. The properties of the nucleus indicated by the new photometry do not compare favorably with the properties inferred from a model by Whipple and Sekanina (1979).
Jewitt David
Meech Karen
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