What is Neso?
Q: What is Neso?
A: Neso is a moon of Neptune, known as Neptune XIII.
Q: When was Neso discovered?
A: Neso was discovered on August 14, 2002, but it went unnoticed until 2003.
Q: What is Neso's distance from Neptune?
A: Neso orbits Neptune at a distance of more than 48 million km, making it the farthest known moon of any planet.
Q: What is Neso's diameter?
A: Neso is about 60 km in diameter.
Q: How much does Neso weigh?
A: Neso's mass is estimated at 1.6×1017 kg, assuming the mean density of 1.5 g/cm3.
Q: What is Neso's orbit like?
A: Neso follows a very inclined and very eccentric orbit illustrated on the diagram in relation to other irregular satellites of Neptune.
Q: What is the origin of Neso's name?
A: Neso is named after one of the Nereids. Before the announcement of its name on February 3, 2007 (IAUC 8802), Neso was known by its designation S/2002 N 4.
