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Pluto’s Satellite System

Pluto's Satellite System
This illustration shows the relative orbits of Pluto's moons: Charon, Nix, P4, and Hydra. The orbits are nearly circular and tilted to our line of sight, so they appear elongated.
  • Object Name
    Object NameA name or catalog number that astronomers use to identify an astronomical object.
    Pluto
  • Release Date
    July 20, 2011
  • Science Release
    NASA’s Hubble Discovers Another Moon Around Pluto
    Read the release
  • Credits
    NASA, ESA, and A. Feild (STScI)

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Related Images & Videos

Pluto's Moon System

Pluto's Moon System

These two images, taken about a week apart by NASA's Hubble Space Telescope, show four moons orbiting the distant, icy dwarf planet Pluto. The green circle in both snapshots marks the newly discovered moon, temporarily dubbed P4, found by Hubble in June. P4 is the smallest moon...

Pluto: June 28, 2011 (WFC/UVIS)

Pluto: June 28, 2011 (WFC/UVIS)

Pluto: July 3, 2011 (WFC/UVIS)

Pluto: July 3, 2011 (WFC/UVIS)

Compass and Scale Image of Pluto

Compass and Scale Image of Pluto

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Details

Last Updated
Feb 17, 2025
Contact
Media

Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov

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