In the Night...

Caption NASA:"Two of Saturn's ring moons draw close momentarily, before the inner of the pair moves off alone.
Atlas passes Prometheus (about 86 Km, or approx. 53 miles across, at center left) about once a month, then slowly and steadily pulls ahead of its slower moving sibling.

This view looks toward the unilluminated side of the Rings from about 23° above the Ring-Plane. The image was taken in visible light with the Cassini spacecraft narrow-angle camera on April 6, 2008. The view was acquired at a distance of approx. 1,6 MKN (such as about 975.000 miles) from Atlas.
Image scale is roughly 9 Km (about 6 miles) per pixel".