NASA / JPL-Caltech / SSI / color mosaic by Gordan Ugarkovic
Saturn's rings, Mimas, Pan, and Prometheus
This view of the sunlit (southern) side of Saturn's rings was captured by Cassini on 3 October 2007, a week before its one and only encounter with Iapetus. Five separate pointings of Cassini's narrow-angle camera were necessary to produce this approximate true-color view, assembled from the calibrated mission data by Gordan Ugarkovic.
Mimas is the bright speck above the rings, with its giant crater Herschel clearly visible upon enlargement. Near the left ansa (edge) of the rings, tiny Pan orbits within the narrow Encke gap. And, below the main rings, potato-shaped Prometheus sits atop the very faint F ring. Pan and Prometheus are only visible when the image is enlarged to its full size.