Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...193l...4k&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 193, no. 1-2, March 1988, p. L4-L6.
Astronomy and Astrophysics
Astronomy
4
Comet Nuclei, Halley'S Comet, Nutation, Precession, Rotating Bodies, Axes Of Rotation, Light Curve, Outgassing, Comets, Halley, Comet Nuclei, Rotation, Precession, Nutation, Astronomy, Rotation, Lightcurves, Models, Gases, Production Rates, Comparisons, Diagrams, Calculations, Periodicity
Scientific paper
The nucleus of comet P/Halley as a tri-axial, rigid and torque-free rotating body is discussed, especially the effects of a possible nutation of the rotation axis. It is found that the apparently randomly occurring outbursts observed in the light curve at large heliocentric distances may in reality be caused by the combined effects of rotation, precession and nutation. It is also found that this model predicts complex gas production curves not in agreement with those obtained by some authors.
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