by ebow » Tue Jun 27, 2006 1:53 pm
In the Moving Moons of Saturn APOD, Rhea appears to be moving in a slow, retrograde orbit. This is just an effect of the relative motion of the camera / spacecraft, right? I wonder why the Cassini imaging team didn't control the frame to keep Rhea more centered, or even give it apparent motion leftward.
Or is my perspective completely off? I'm assuming that Mimas and Enceladus are located between the observer and Rhea (that is, inside the moons' orbit) since the fastest relative motion is to the left...
In the Moving Moons of Saturn APOD, Rhea appears to be moving in a slow, retrograde orbit. This is just an effect of the relative motion of the camera / spacecraft, right? I wonder why the Cassini imaging team didn't control the frame to keep Rhea more centered, or even give it apparent motion leftward.
Or is my perspective completely off? I'm assuming that Mimas and Enceladus are located between the observer and Rhea (that is, inside the moons' orbit) since the fastest relative motion is to the left...