News Release Archive:

News Release 63 of 192

June 22, 2006 08:00 PM (EDT)

News Release Number: STScI-2006-29

Pluto's Two Small Moons Officially Named Nix and Hydra


Image: Pluto and Its Moons: Charon, Nix, and Hydra

Pluto and Its Moons: Charon, Nix, and HydraSTScI-PRC2006-29a

Screen-use options: These files are created for viewing on your monitor

Print-use download options: These files are designed to fit on letter-size paper


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.

Object Names: Pluto, Charon, Nix, Hydra

Image Type: Astronomical/Illustration

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


All images from this news release:

To access available information and downloadable versions of images in this news release, click on any of the images below: