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Occultation detection of a Neptunian ring-like arcThe apparent closest approach of the star SAO186001 to Neptune was observed photoelectrically on July 22, 1984 at Cerro Tololo Inter-American Observatory. A 32-percent signal drop, lasting about 1.2 s, was probably caused by a partially transparent arc of material at a distance of 67,000 km from Neptune. Neptune's arc(s) do not vary smoothly with azimuth, unlike the rings of other Jovian planets.
Document ID
19860042323
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Hubbard, W. B.
(Arizona, University Tucson, United States)
Brahic, A.
(Arizona Univ. Tucson, AZ, United States)
Sicardy, B.
(Arizona Univ. Tucson, AZ, United States)
Roques, F.
(Paris Observatoire, Meudon, France)
Elicer, L.-R.
(Observatorio Interamericano de Cerro Tololo La Serena, Chile)
Vilas, F.
(NASA Johnson Space Center Houston, TX; Arizona, University, Tucson, United States)
Date Acquired
August 12, 2013
Publication Date
February 20, 1986
Publication Information
Publication: Nature
Volume: 319
ISSN: 0028-0836
Subject Category
Astronomy
Accession Number
86A27061
Funding Number(s)
CONTRACT_GRANT: NSG-7045
CONTRACT_GRANT: NSF AST-78-27879
Distribution Limits
Public
Copyright
Other

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