Nereid was discovered in 1949 through Earth-based telescopes.
Little is known about Nereid, which is slightly smaller than
Proteus, having a diameter of 211 mi (340 km). The satellite's
surface reflects about 14% of the sunlight that strikes it.
Nereid's orbit is the most eccentric in the solar system,
ranging from about 841,100 mi (1,353,600 km) to 5,980,200 mi
(9,623,700 km). Information Please® Database, © 2007 Pearson
Education, Inc. All rights reserved. More on Nereid from
Infoplease: