<Li> Bottom: Pluto's largest moon, Charon, with its dark Mordor Macula </Li> <P> (Images not to scale) </P> <P> The dwarf planet Pluto has five moons down to a detection limit of about 1 km in diameter . In order of distance from Pluto, they are Charon, Styx, Nix, Kerberos, and Hydra . Charon, the largest of the five moons, is mutually tidally locked with Pluto, and is massive enough that Pluto--Charon is sometimes considered a double dwarf planet . </P> <P> The innermost and largest moon, Charon, was discovered by James Christy on 22 June 1978, nearly half a century after Pluto was discovered . This led to a substantial revision in estimates of Pluto's size, which had previously assumed that the observed mass and reflected light of the system were all attributable to Pluto alone . </P>

How many moons does pluto have and their names