Prometheus

Caption NASA:"The moon Prometheus and a bit of Saturn's Northern Hemisphere are both brilliantly lit by the Sun here, making the A-Ring seem dim in comparison.
The bright limb of Saturn's Northern Hemisphere can be seen through the A-Ring in the lower left of the image.
Prometheus (about 86 Km, or approx. 53 miles across) orbits in the Roche Division between Saturn's A and F-Ring.
For a similar view of Pandora, another of the F-Ring's Shepherding Moons, see PIA09899.

This view looks toward the sunlit side of the Rings, from about 20° below the Ring-Plane.
The image was taken in Red Light with the Cassini Spacecraft narrow-angle camera on May 25, 2009. The view was acquired at a distance of approx. 694,000 Km (about 431.000 miles) from Prometheus and at a Sun-Prometheus-Spacecraft, or Phase, Angle of 49°.
Image scale is roughly 3,6 Km (about 2,2 miles) per pixel".