A pair of small moons photographed by NASA's Hubble Space Telescope discovered orbiting Pluto in 2005 now have official names: Nix and Hydra.
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Pluto and its Moons: Charon, Nix, and Hydra

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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.

Photojournal Note: There is debate within the science community as to whether Pluto should be classified as a Planet or a dwarf planet.

Image details

ID#:
PIA12453

Date added:
2009-04-21

Target:
Pluto

Mission:
Hubble Space Telescope (HST)

Spacecraft:
Hubble Space Telescope

Instruments:
Advanced Camera for Surveys

Rating:



Views:
6,547

Full-Res TIFF:
PIA12453.tif (0.76 MB)

Full-Res JPG:
PIA12453.jpg (0.01 MB)

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