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Pluto’s Moons

Pluto’s Moons

Pluto, a dwarf planet, has 5 known moons:

  • Charon:
    • Diameter: 1,208 km (749 miles)
    • Orbit:
      • Average Distance from Pluto: 19,640 km (12,200 miles)
      • Orbital Period: 6.4 days
    • Composition: Icy and rocky.
    • Surface Features: Large canyon systems and a dark polar cap.
  • Nix and Hydra:
    • Nix Diameter: 44 km (27 miles)
    • Hydra Diameter: 61 km (38 miles)
    • Orbit:
      • Average Distance from Pluto: Nix (48,700 km / 30,300 miles), Hydra (64,700 km / 40,300 miles)
      • Orbital Period: Nix (24.9 days), Hydra (25.4 days)
    • Composition: Likely composed of ice and rock.
  • Styx:
    • Diameter: Approximately 16 km (10 miles)
    • Orbit:
      • Average Distance from Pluto: 42,700 km (26,500 miles)
      • Orbital Period: 20.2 days
    • Composition: Likely composed of ice and rock.
  • Kerberos:
    • Diameter: Approximately 13 km (8 miles)
    • Orbit:
      • Average Distance from Pluto: 58,200 km (36,200 miles)
      • Orbital Period: 32.1 days
    • Composition: Likely composed of ice and rock.

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