Close to the Shepherd Moons
This spectacular image shows Saturn's moons Prometheus (at right) and Pandora (at left), with their flock of icy ring particles (the F Ring) between them. Pandora is exterior to the ring, and closer to the Cassini spacecraft here. Each of the shepherd satellites has an unusual shape, with a few craters clearly visible.
The effect of Prometheus (102 kilometers, or 63 miles across) on the F ring is visible as it pulls material out of the ring when it is farthest from Saturn in its orbit. Pandora is 84 kilometers (52 miles) across.
Image credit: NASA/JPL/Space Science Institute