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Photoelectric photometry of Comet P/Halley from Mauna Kea ObservatoryA program of photoelectric photometry of comet Halley yielded 60 nights of usable photometry. The uncertainty in the photometry in all filters except OH is better than 2%. Throughout the apparition, the comet is brightest in the filters that isolated the neutral gas emission features of OH, CN, C2, and C3. The fluxes in the filters that isolated the ionic emission features of CO(+) and H2O(+) are comparable to the continuum when centered upon the optocenter, thereby making the ionic emission weak to undetectable above the continuum. The continuum colors do not appear to be a function of phase angle; therefore, the colors are probably indicative of dust grain composition and are not dominated by scattering geometry effects.
Document ID
19870017374
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Piscitelli, J. R.
(Hawaii Univ. Honolulu, HI, United States)
Tholen, D. J.
(Hawaii Univ. Honolulu, HI, United States)
Hammel, H. B.
(Hawaii Univ. Honolulu, HI, United States)
Lark, N.
(University of the Pacific Stockton, Calif., United States)
Date Acquired
September 5, 2013
Publication Date
December 1, 1986
Publication Information
Publication: ESA, Proceedings of the 20th ESLAB Symposium on the Exploration of Halley's Comet. Volume 3: Posters
Subject Category
Astrophysics
Accession Number
87N26807
Funding Number(s)
CONTRACT_GRANT: NGL-12-001-057
Distribution Limits
Public
Copyright
Other

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