Saturn's moon, Tethys shares an orbit with two other moons. Telesto & Calypso are trapped in Tethys' Lagrange 4 & 5 points. The simulation tethys.gsim shows Tethys, Telesto & Calypso in a rotating frame. The initial starting conditions were obtained using data from JPL's Horizons Ephemeris Computation Service. The moons keep a consistant spacing between themselves.

Download tethys.gsim

(You need to have the program Gravity Simulator installed on your computer first. Click Here to download Gravity Simulator.)