What is Psamathe (moon)?
'''Psamathe''' or '''Neptune X''', is a non-[[Sphere|spherical]] moon of [[Neptune (planet)|Neptune]]. Psamathe was found by [[Scott S. Sheppard]] and [[David C. Jewitt]] in [[2003]]. It orbits Neptune at a distance of about 46,695,000 km and takes almost 25 Earth years to make one orbit. It is about 24 kilometers in [[diameter]]. It is named after [[Psamathe]], one of the [[Nereid]]s. Before the announcement of its name on [[February 3]], [[2007]] (IAUC 8802<!--- Subscription required; see http://luppas.homeip.net/astrotaller/novedades.htm --->), it was known by the designation '''S/2003 N 1'''. * [[Orbital eccentricity|Eccentricity]]: 0.4499 * Orbital [[inclination]]: 146.60° (to Neptune's equator), 124.39° (to the ecliptic) Given the similarity of the orbit's parameters with [[Neso (moon)|Neso]] (S/2002 N 4), it was suggested that both non-spherical moons could have been a bigger moon that broken up. ==Other websites== *[http://www.ifa.hawaii.edu/~jewitt/irregulars.html David Jewitt pages] *[http://www.ifa.hawaii.edu/~sheppard/satellites/nepsatdata.html Scott Sheppard pages] *[http://cfa-www.harvard.edu/iau/NatSats/NaturalSatellites.html Ephemeris (IAU)] *[http://ssd.jpl.nasa.gov/?sat_elem Mean orbital parameters (NASA)] <br />{{Neptune Footer}} [[Category:Neptune's moons]]