Neso
Neso is a moon of the planet Neptune.
Facts About Neso:
- Neso is the outermost of the 14 known moons of Neptune.
- It orbits Neptune at a distance of more than 48 million km, making it the most distant known moon of any planet. At some points in its orbit it is farther from Neptune than Mercury is from the Sun.
- It has the longest known orbit for a moon - over 26 years.
Classification: Moon (orbiting Neptune)
Names: Neso, Neptune XIII, S/2002 N4
Discovered: 2002 by M. Holman, J. Kavelaars, T. Grav, W. Fraser, and D. Milisavljevic
Naming: Named after one of the Nereids, sea nymphs from Greek mythology.
Diameter: 60 km
Semi-major axis: 49,500,000 km
Orbital Period: 9740.73 Earth days (26.67 Earth years)
Eccentricity: 0.57140000
Albedo: 0.0400
Adjective: Nesoan, Nesoian