Neptune

Steven Dutch, Natural and Applied Sciences, University of Wisconsin - Green Bay
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The Rings of Neptune

The rings of Neptune are named for people influential in the discovery of the planet. They are:

The Moons of Neptune

Triton

Nereid

Proteus

Other small Moons of Neptune

All discovered by Voyager. All, including Proteus, are inside the Roche limit of Neptune, the zone where tidal forces prevent satellite formation. Hence they must have been captured or had their orbits modified somehow. Ground observation and analysis of Voyager images continue to turn up new satellites. The count as of 2008, almost certainly incomplete, is 13. Two, orbiting over 25 million miles away with periods of over 25 years, are the most distant known planetary satellites.

References


Return to Planetary Images Index
Access Course Notes on Planetary Geology
Access Astronomy Notes Index
Return to Professor Dutch's Home Page

Created 20 May 1997, Last Update 14 December 2009

Not an official UW Green Bay site