{ Moons of Saturn }
Discovered by            Mark Showalter  
Date of Discovery        1990
Distance from Saturn     133,583 km
Radius                   10 km
Mass                     ???
Orbital Eccentricity     ???
Orbital Inclination      ???
Orbital Period           0.5750 days
Rotational Period        ???
Density (gm/cm3)         ??? 

Very little is known about poor Pan, the nearest satellite to Saturn. It is a shepherd moon in the Encke Gap of Saturn's A ring. A shepherd moon limits the extent of a ring so Pan keeps this gap open through its gravitational effects. It was discovered by studying imagery from the Voyager 2 probe. See also: rings of Saturn.