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|surfacearea=4,580,000 km² (0.898% earth)

|surfacearea=4,580,000 km² (0.898% earth)

|meantemp=53 K

|meantemp=53 K

}}'''Charon''' is the largest [[moon]] of the [[dwarf planet]] [[Pluto]]. It is so large, in fact, that some authorities hold that Pluto and Charon constitute a binary system because Pluto is not much more massive than is Charon.

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'''Charon''' is the largest [[moon]] of the [[dwarf planet]] [[Pluto]]. It is so large, in fact, that some authorities hold that Pluto and Charon constitute a binary system because Pluto is not much more massive than is Charon.

James W. Christy of the United States Naval Observatory is credited with its discovery on July 2, 1978. [[National Aeronautics and Space Administration|NASA]] hopes to obtain more extensive images of Charon and other bodies in the Pluto system with its first extensive deep-space mission to the Pluto system, ''New Horizons''.

James W. Christy of the United States Naval Observatory is credited with its discovery on July 2, 1978. [[National Aeronautics and Space Administration|NASA]] hopes to obtain more extensive images of Charon and other bodies in the Pluto system with its first extensive deep-space mission to the Pluto system, ''New Horizons''.