ISBN: | 978-5-5080-1662-3 |
High Quality Content by WIKIPEDIA articles! Pluto has five known moons. In order of discovery they are Charon, Nix, Hydra, S/2011 P 1 ("P4"), and S/2012 P 1 ("P5"). Charon, the largest of the five, is mutually tidally locked with Pluto.