Proteus ("PROH tee us") is the sixth of Neptune's known satellites and the second largest:
Proteus was a sea god who could change his shape at will.
Discovered in 1989 by Voyager 2. Though it is larger than Nereid, it was not discovered earlier because it is very dark and so close to Neptune that it is difficult to see in the glare of the much brighter planet.
The heavily cratered surface shows no signs of geologic activity.
More about Proteus
Home ... Neptune ... Larissa ... Proteus ... Triton ... Data
Bill Arnett; last updated: 1995 January 14