Which two of Saturn's moons switch orbits?
A)Enceladus and Titan
B)Janus and Epimetheus
C)Telesto and Calypso
D)Helene and Dione
E)None; this is not possible.

Question

Quizplus · Accepted Answer

Janus and Epimetheus switch orbits every four years due to a gravitational interaction. This phenomenon is known as a "co-orbital resonance." Janus and Epimetheus have a unique orbital relationship called a co-orbital resonance, where they essentially trade orbits every four years. This means that they switch places in their orbits around Saturn.

Which Two of Saturn's Moons Switch Orbits