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Epimetheus
Epimetheus Moon

Epimetheus: A-ring Shepherd Moon of Saturn

Epimetheus is one of the moons of planet Saturn. Epimetheus, along with Janus, are shepherd moons for the A ring of Saturn. Both Epimetheus and Janus are co-orbitals, meaning they share essentially the same orbit around Saturn, and "swap" places every 4 years.

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

Epimetheus Facts
      1. Mass (kg)
      2. 5.266 x 1017
      1. Radius (km)
      2. 58.1
      1. Density (gm/cm3)
      2. 0.64
      1. Distance from planet (km)
      1. Rotational period (days)
      2. synchronous
      1. Orbital period (days)
      2. 0.694
      1. Orbital velocity (km/sec)
      2. 0.035
      1. Eccentricity of orbit
      2. 0.0098
      1. Inclination of orbit (°)
      2. 0.351
      1. Albedo
      2. 0.73
      1. Magnitude
      2. 15.7
      1. Atmosphere