PIA12453: Pluto and its Moons: Charon, Nix, and Hydra
Target Name: Pluto
Is a satellite of: Dwarf Planet
Mission: Hubble Space Telescope
Instrument: Advanced Camera for Surveys
Product Size: 504 x 504 pixels (width x height)
Produced By: NASA/ESA
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Full-Res JPEG: PIA12453.jpg (12.04 kB)

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A pair of small moons that NASA's Hubble Space Telescope discovered orbiting Pluto now have official names: Nix and Hydra. Photographed by Hubble in 2005, Nix and Hydra are roughly 5,000 times fainter than Pluto and are about two to three times farther from Pluto than its large moon, Charon, which was discovered in 1978.

Image Credit:
NASA, ESA, H. Weaver (JHUAPL), A. Stern (SwRI), and the HST Pluto Companion Search Team

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