What is Halimede (moon)?
[[File:TheIrregulars NEPTUNE GROUPS.svg|thumb|300px|Irregular satellites of Neptune.]] '''Halimede''' is a non-[[Sphere|spherical]] [[Satellite (natural)|moon]] of [[Neptune (planet)|Neptune]]. It was found by [[Matthew J. Holman]] ''et al.'' on August 14, 2002. Halimede follows a very [[inclination|inclined]] and very [[Orbital eccentricity|eccentric]] orbit seen on the image in relation to other non-spherical moons of Neptune. Halimede is about 62 kilometres in diameter (assuming an [[albedo]] of 0.04) and appears neutral (grey) in the [[visible light]]. Given the very similar colour of the moon to that of [[Nereid (moon)|Nereid]] together with a high probability (41%) of their collision in the lifespan of the Solar system, it has been suggested that the moon could be a piece of Nereid. Halimede, or '''Neptune IX''', like many of the farther moons of Neptune, is named after one of the Nereids, the fifty daughters of Nereus and Doris. Before the announcement of its name on February 3, 2007 (IAUC 8802<!--- Subscription required; see http://luppas.homeip.net/astrotaller/novedades.htm --->), Halimede was known by the designation S/2002 N 1. == Other websites == *[http://cfa-www.harvard.edu/~mholman/neptunians-press-release.html Matthew Holman's Neptune's page] *[http://www.ifa.hawaii.edu/~jewitt/irregulars.html David Jewitt's pages] *[http://www.ifa.hawaii.edu/~sheppard/satellites/nepsatdata.html Scott Sheppard's pages] {{Neptune Footer}} [[Category:Neptune's moons]]