It is roughly 170 km in radius.
Nereid - moon - was created on 1949-05-01.
Its moon, Nereid.
Gerard P. Kuiper 1949
Gerard P. Kuiper 1949
Neptune's moons are Galatea, Despina, Thalassa, Naiad, Larissa, Proteus, Triton, and Nereid. Only Triton and Nereid are large enough to be seen by Earth-based telescopes.
Actually it was found by voyager 2, it's the same that discover Neptune
The best measurement of Nereid's diameter comes from images taken by Voyager 2 in its August 1989 flyby of Neptune: 170 kilometers, plus or minus 25 (106 +/- 16 miles). The rather poor precision stems from Nereid being distant from Voyager's trajectory at the time of the flyby, so in the images Nereid is only a few pixels across. Dr. Thomas R. Spilker, Jet Propulsion Laboratory
Naiad, Thalass, Galatea, Larisaa, Proteus, Triton, Nereid, Halimede, Sao, Laomedeia, Psamathe, and Neso.
Triton and Nereid orbit the planet Neptune.
Amphitrite, a nereid or sea nymph.
NaiadThalassaDespinaGalateaLarisaaProteusTritonNereidHalimedeSaoLaomedeiaPsamatheNesoThese are the names of the 13 moons orbiting Neptune. Pandora isn't one of them.
Amphitrite, a nereid.