Comet P/Halley: Visual magnitude estimates and gas production

Details Comet P/Halley: Visual magnitude estimates and gas production Comet P/Halley: Visual magnitude estimates and gas production

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987esasp.278..599f&link_type=abstract

In ESA, Proceedings of the International Symposium on the Diversity and Similarity of Comets p 599-605 (SEE N88-21884 14-91)

Computer Science

4

Halley'S Comet, Magnitude, Outgassing, Visible Spectrum, Cosmic Dust, Error Analysis, Hydroxyl Radicals

Scientific paper

Error sources in visual magnitude estimates of P/Halley were removed by a rigid selection procedure. From the remaining sample, brightness laws of two different types are deduced. Studies of molecular production rates and their changes during the 1985 to 1986 apparition of P/Halley are compared with these laws in order to obtain formulas transforming visual magnitude estimates directly into production rates, especially OH. Inconsistencies between different studies could not be reconciled, so only vague conclusions are possible. The dust content of a comet is cited as a potentially complicating factor in obtaining a simple law.

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