Neso

Neso was discovered in 2002 through observations conducted using the Subaru telescope in Hawaii. Named after a sea nymph from Greek mythology, Neso stands out for its extreme distance from Neptune, orbiting the planet at an average distance of approximately 48.2 million kilometers, making it one of the most remote natural satellites in the entire solar system. However, Neso's most striking feature is its highly eccentric and retrograde orbit, orbiting Neptune in the opposite direction of the planet's rotation, which is among the most extreme orbital characteristics among known moons in the solar system.