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Discrete cloud structure on NeptuneRecent CCD imaging data for the discrete cloud structure of Neptune shows that while cloud features at CH4-band wavelengths are manifest in the southern hemisphere, they have not been encountered in the northern hemisphere since 1986. A literature search has shown the reflected CH4-band light from the planet to have come from a single discrete feature at least twice in the last 10 years. Disk-integrated photometry derived from the imaging has demonstrated that a bright cloud feature was responsible for the observed 8900 A diurnal variation in 1986 and 1987.
Document ID
19890059857
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hammel, H. B.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena; Hawaii, University Honolulu, United States)
Date Acquired
August 14, 2013
Publication Date
July 1, 1989
Publication Information
Publication: Icarus
Volume: 80
ISSN: 0019-1035
Subject Category
Lunar And Planetary Exploration
Accession Number
89A47228
Funding Number(s)
CONTRACT_GRANT: NGL-12-001-057
CONTRACT_GRANT: NSF AST-86-15631
CONTRACT_GRANT: NSF AST-85-14575
Distribution Limits
Public
Copyright
Other

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