In Saturn's ring system, Pandora acts as the outer shepherd of the narrow F ring.
Pandora is a small, irregular moon orbiting just outside Saturn's F ring. Its gravitational influence helps confine and shape the ring, while the moon Prometheus performs the corresponding inner-shepherd role. Together, the two moons create a distinctive gravitational partnership.
Saturn's F ring is narrow, braided, and constantly disturbed. Prometheus and Pandora do not simply form a static pair: their orbital interactions produce changes in the ring's strands and patterns. This makes the system an important example of how small moons can sculpt planetary rings.
The real Pandora was discovered in photographs taken by Voyager 1 in 1980 and was initially designated S/1980 S 26. It is much smaller than Saturn's major moons and should not be confused with the fictional moon in Avatar or the mythological Pandora.