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Spectrophotometry of Comet Kohoutek (1973f) During Pre-Perihelion Period

Published online by Cambridge University Press:  22 February 2018

G. S. D. Babu

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A total of eleven scans of the head of comet Kohoutek (1973f) were obtained during the pre-perihelion period with a photoelectric spectrum scanner (Babu, 1971), mounted at the Nasmyth focus (f/13.1) of the 52-cm telescope, on 7, 10, 11, 13, 14 and 15 December 1973 at the rate of two scans per day, except on 7 December when only one scan was taken. The observational procedure was similar to that for comet Bennett (1969 i) (Babu and Saxena, 1972), excepting that a diaphragm of 3 mm diameter equivalent of 93″ of the sky was used at the entrance of the monochromator. The width of the exit slit was equivalent to a spectral window of 3.5 nm. The scans covered the spectral range from 370 to 640 nm. The basic data of the comet during the period of observations is given in Table I.

Type
Part I
Information
International Astronomical Union Colloquium , Volume 25 , Issue Part1: The Study of Comets , 1976 , pp. 220 - 231
Copyright
Copyright © NASA 1976

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