Saturn's moons Janus and Epimetheus

Numéro d’image : 12395134
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 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.
Licence : Droits gérés
Crédit: Science Photo Library / Space Science Institute / JPL / NASA
Taille de l’image : 5549 px × 1606 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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