Saturn's moon, Dione shares an orbit with another one of Saturn's moons, Helene. Helene is trapped in Dione's Lagrange 4 point. The simulation dione.gsim shows Dione and Helene 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 dione.gsim

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