Epimetheus (moon)

Image taken by Cassini-Huygens.

Epimetheus is a moon of Saturn. It was discovered by Richard Walker in 1966. At first, Epimetheus was thought to be same as Janus, another moon that orbits at the same distance from Saturn. It was confirmed by Voyager 1 in 1980 that they were two separate moons.

Epimetheus (moon) Media

• 

  Epimetheus (lower left) and Janus (right) seen on 20 March 2006, two months after swapping orbits. The two moons appear close only because of foreshortening; in reality, Janus is about 40,000 km farther from Cassini than Epimetheus.

• 

  Rotating-frame depiction of the horseshoe orbits of Janus and Epimetheus

• 

  Animation of Epimetheus's orbit – Rotating reference frame       Saturn ·        Janus  ·       Epimetheus

• 

  Epimetheus crossed by the shadow of the F Ring, as imaged by Voyager 1 (NASA)

• 

  Epimetheus - flyby(6 December 2015)

• 

  Mosaic of five images during February 2017 flyby