thumb|upright=1.5|The moons Prometheus (right) and Pandora (left) orbit just inside and outside, respectively, the F ring of Saturn, but only Prometheus is thought to function as a shepherd moon.
thumb|upright,=1.5|The .moons Prometheus (right) and Pandora (left) orbit just inside and outside respectively, the F ring of Saturn but only Prometheus is though,t to function as a shepherd moon