Occultation detection of a neptunian ring-like arc

W. B. Hubbard, A. Brahic, B. Sicardy, L. R. Elicer, F. Roques, F. Vilas

Research output: Contribution to journalArticlepeer-review

67 Scopus citations


The apparent closest approach of the star SAO186001 to Neptune was observed photoelectrically on 22 July 1984 at Cerro Tololo Inter-American Observatory. A 32% 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.

Original languageEnglish (US)
Pages (from-to)636-640
Number of pages5
Issue number6055
StatePublished - 1986

ASJC Scopus subject areas

  • General


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