Helene

Helene /ˈhɛləniː/ is a moon of Saturn. It was discovered by Pierre Laques and Jean Lecacheux in 1980 from ground-based observations at Pic du Midi Observatory, and was designated S/1980 S 6. In 1988 it was officially named after Helen of Troy, who was the granddaughter of Cronus (Saturn) in Greek mythology. Helene is also designated Saturn XII (12), which it was given in 1982, and Dione B, because it is co-orbital with Dione and located in its leading Lagrangian point (L4). It is one of four known trojan moons 
Category:Moons
Category:Saturnian Moons
Category:Dione Trojan
Category:Prograde Satellite
Category:Objects Not in Hydrostatic Equilibrium
Category:Objects with No Atmosphere
Category:Outer Solar System Object
Category:Shepherd Moon
Category:Trojan Moon
Category:Named Objects
Category:Named Moons
Category:Numbered Objects
Category:Numbered Moons
Category:Objects Visited by Spacecraft