The nucleus of comet P/Schwassmann-Wachmann 1

Details The nucleus of comet P/Schwassmann-Wachmann 1 The nucleus of comet P/Schwassmann-Wachmann 1

Dec 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983icar...56..377c&link_type=abstract

Icarus (ISSN 0019-1035), vol. 56, Dec. 1983, p. 377-380.

Astronomy and Astrophysics

Astronomy

29

Albedo, Comet Nuclei, Infrared Astronomy, Schwassmann-Wachmann Comet, Thermal Radiation, Bursts, Diameters, Magnitude, Radiant Flux Density

Scientific paper

The thermal flux in the 20-micron Q filter band of comet P/Schwassmann-Wachman was measured some 77 days after the most recent previous eruption, and when the visual magnitude was abut 17.6. Considerations of the eruptive history of the comet, and in particular its tendency to fade to a minimum threshold brightness level between eruption, suggest that the measurement refers to an essentially bare nucleus. Using the standard photometric/radiometric technique for calculating the diameters and geometric albedos of asteroids and planetary satellites, and the assumption that the bare nucleus is measured, it is found that the diameter of the nucleus is 40 + or - 5 km, and the geometric albedo is 0.13 + or - 0.04.

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