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Observations of the zodiacal light from the ecliptic to the poles.The brightness and polarization of the zodiacal light have been measured from the satellite OSO-5, using two photometers of effective wavelengths 4180 and 6820 A. The satellite configuration restricts the observations to ecliptic longitudes close to 90 deg, but measurements have been made from the ecliptic to the poles. On the ecliptic, the intensity of the zodiacal light was found to be 117 S10 (blue) and 315 S10 (red) with polarizations of 16.5 and 15 per cent, respectively. At the ecliptic poles the zodiacal intensity was 35 S10 (blue) with 20 per cent polarization. No temporal changes in zodiacal light have been found nor any significant differences in the intensities in the two hemispheres. The direction of polarization of the zodiacal light has been shown to be H-pass radial.
Document ID
19720049801
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Sparrow, J. G.
Ney, E. P. (Minnesota, University Minneapolis, Minn., United States)
Date Acquired
August 6, 2013
Publication Date
June 15, 1972
Publication Information
Publication: Astrophysical Journal
Volume: 174
Subject Category
GEOPHYSICS
Funding Number(s)
CONTRACT_GRANT: NGL-24-005-008
CONTRACT_GRANT: NAS5-3838
Distribution Limits
Public
Copyright
Other