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Experiment S001: Zodiacal Light PhotographyObservations made during the Gemini 5, 9, and 10 missions in the context of their relation to ground-based and balloon-based experiments on dim-light phenomena are reported. Zodiacal light is the visible manifestation of dust grains in orbit around the sun. The negatives that were exposed on the Gemini 9 mission were studied by the use of an isodensitracer to produce intensity isophotes. Data on the following factors were obtained: (1) intensity distribution of the zodiacal light, both morning and evening; (2) the height and intensity of the airglow at various geographic positions; and (3) intensity distribution of the Milky Way in the region of the sky near Cygnus. Also, a previously unreported phenomenon was discovered. This phenomenon appeared as an upward extension of the normal 90-kilometer airglow layer. The extension was in the form of wisps or plumes approximately 5 deg wide and extending upward approximately 5 deg. The results obtained from pictures exposed on the Gemini 10 mission were of qualitative or geometrical value only.
Document ID
19720003208
Document Type
Other
Authors
Ney, E. P. (Minnesota Univ. Minneapolis, MN, United States)
Huch, W. F. (Minnesota Univ. Minneapolis, MN, United States)
Date Acquired
August 6, 2013
Publication Date
September 1, 1971
Publication Information
Publication: NASA. Manned Spacecraft Center The Gemini Program: Phys. Sci. Expt. Sum.
Subject Category
INSTRUMENTATION AND PHOTOGRAPHY
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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