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Charon

[Image of Pluto and Charon]

Radius:
593 km

Mass:
1.90x1021 kg

Orbital Period:
6.39 Earth days

Rotation Period:
6.39 Earth days

Distance:
19,640 km from Pluto

Charon is Pluto's only known moon, and is not much smaller than Pluto. The image of Pluto and Charon (left) was taken by the Hubble Space Telescope.

Web Pages with Information about Charon

Astrogeology Research Program

Browse the Solar System: Interactive version of our popular poster Mapping the Solar System
Browse the Geologic Solar System: Interactive version of our popular poster Geology of the Solar System
Cartographic Coordinates and Rotational Elements of the Planets and Satellites - IAU Working Group: IAU CCRE Working Group, information, publications, and references, including tables of the accepted values for the size, shape, and rotations of the planets and satellites
NASA Planetary Photojournal: Images from various Solar System exploration programs
Workshop on Remote Sensing of Planetary Ices: Earth and other Solid Bodies - information and abstracts from the 1997 workshop held at the USGS Flagstaff Field Center

Other Web Sites