Halley's comet - Its size and decay rate

Details Halley's comet - Its size and decay rate Halley's comet - Its size and decay rate

Sep 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985mnras.216..453w&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 216, Sept. 15, 1985, p. 453-458.

Astronomy and Astrophysics

Astronomy

11

Brightness, Comet Nuclei, Decay Rates, Halley'S Comet, Outgassing, Albedo, Astronomical Models, Orbit Perturbation, Secular Variations, Comets, Halley, Size, Decay, Outgassing, Brightness, Radius, Albedo, Comet Nuclei, Comae, Composition, Observations, Astronomy

Scientific paper

The outgassing rates inferred from the 1910 apparition and the brightness decay over the previous two millenia are compatible with the minimum nuclear brightness currently observed if the comet nucleus is small, 1.8 - 2.7 km radius with an albedo of 0.1 - 0.2. Outgassing is faster than from a bare nucleus of dirty H2O-ice, which is attributed either to a hot microdust coma or to an organic polymer composition. Halley's comet will decay away within another 45 - 65 apparitions.

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