Ringside with Titan and Dione . ... Credit Copyright: Cassini Imaging Team , SSI , JPL , ESA , NASA Explanation: Orbiting in the plane of Saturn's rings , Saturnian moons have a perpetual ringside view of the gorgeous gas giant planet. ... Pale Dione is about 1,100 kilometers across and orbits over 300,000 kilometers from the visible outer edge of the A ring. ... At 5,150 kilometers across, Titan is about 2.3 million kilometers from Cassini, while Dione is 3.2 million kilometers away. ...