Charon

Not to be confused with the smaller outer Solar System centaur 2060 Chiron.Not to be confused with Charon (mythology), the being that brings dead souls to the underworld in Greek mythology.

Charon is the largest satellite of the dwarf planet Pluto. It was discovered in 1978 at the United States Naval Observatory Flagstaff Station (NOFS). Following the 2005 discovery of two other natural satellites of Pluto (Nix and Hydra), in 2011, a fourth, S/2011 P 1, and on July 11, 2012, a fifth satellite S/2012 P 1, Charon may also be referred to as (134340) Pluto I.[1] The New Horizons mission is scheduled to visit Charon and Pluto in July 2015