Saturn's Moons Janus And Epimetheus is a photograph by Nasa/jpl/space Science Institute/science Photo Library which was uploaded on September 11th, 2018.
Saturn's Moons Janus And Epimetheus
Cassini spacecraft image of Saturn's moons Janus (right) and Epimetheus (left) and the planet's F ring (far left). These two moons effectively share... more
Title
Saturn's Moons Janus And Epimetheus
Artist
Nasa/jpl/space Science Institute/science Photo Library
Medium
Photograph
Description
Cassini spacecraft image of Saturn's moons Janus (right) and Epimetheus (left) and the planet's F ring (far left). These two moons effectively share the same orbit, as the difference in their distances from Saturn, is less than the radius of either moon. This configurations causes the moons to swap orbits every four years with the outermost becoming the innermost and vice versa. Saturn's F ring is a narrow ring towards the outer edge of the ring system. The rings are made of chunks of rock and water ice. Image obtained by Cassini's narrow-angle camera on 8th September 2005 at a distance of approximately 1.8 million kilometres from Janus and 1.7 million kilometres from Epimetheus.
Uploaded
September 11th, 2018
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