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Triton Moon

Triton: Cryovolcano moon of Neptune

Triton is the largest moon of planet Neptune and the only large moon in the solar system with a retrograde orbit in the opposite direction from Neptune's rotation. Triton is thought to have been a dwarf planet captured by Neptune from the Kuiper belt.

Its surface is covered in nitrogen ice and water ice, with active nitrogen cryogeysers and water ice cryvolcanoes. Triton has a thin nitrogen atmosphere and a subsurface water ocean. NASA has proposed a mission named Trident to go to Triton in 2038.

For a listing of all moons, see Moons of the Planets.

Triton Facts
      1. Mass (kg)
      2. 2.14e+22
      1. Radius (km)
      2. 1,350
      1. Density (gm/cm3)
      2. 2.07
      1. Distance from planet (km)
      2. 354,800
      1. Rotational period (days)
      2. -5.87685
      1. Orbital period (days)
      2. -5.87685
      1. Orbital velocity (km/sec)
      2. -4.39
      1. Eccentricity of orbit
      2. 0.0000
      1. Inclination of orbit (°)
      2. 157.35
      1. Albedo
      2. 0.7
      1. Magnitude
      2. 13.47
      1. Atmosphere
      2. Nitrogen

    Triton Surface Map

    Triton moon surface map