Pluto and its largest moon, Charon, are at image center appearing as a large and small white dot. Hydra, Nix, and P4 (a very small white dot that has a green circle around it) are to the left of Pluto and Charon. P4 is to the right of Pluto and Charon.

Hubble Discovers a Fifth Moon Orbiting Pluto

This image, taken by NASA's Hubble Space Telescope, shows five moons orbiting the distant, icy dwarf planet Pluto. The green circle marks the newly discovered moon, designated P5, as photographed by Hubble's Wide Field Camera 3 on July 7. The observations will help scientists in their planning for the July 2015 flyby of Pluto by NASA's New Horizons spacecraft.

Credits: NASA; ESA; M. Showalter, SETI Institute
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TakenJuly 11, 2012
Image CreditNASA; ESA; M. Showalter, SETI Institute
Size732x915px