Rings of Neptune
Abstract
C. Roddier, F. Roddier, J. E. Graves, O. Guyon, and M. J. Northcott, Institute for Astronomy, University of Hawaii (UH); and B. Sicardy, Paris Observatory, report: "Infrared (1.72-micron) images of Neptune taken on 1998 July 6 with the UH adaptive optics system (Hokupa'a) mounted on the Canada-France-Hawaii 3.6-m telescope have been studied further. In addition to the observations of Neptune arcs reported on IAUC 7051, evidence is now found for another ring structure even closer to Neptune. Its radial distance is that of the Le Verrier ring. It is visible only on the west ansa, and its brightness is roughly twice that of the Adams arcs."
- Publication:
-
International Astronomical Union Circular
- Pub Date:
- February 1999
- Bibcode:
- 1999IAUC.7108....3R