Saturn's moon Iapetus passes behind Rhea

NASA / JPL / SSI / animation by Errol Coder

On April 20, 2012, Cassini captured a series of Wide Angle images of Saturn's moon Rhea. In this animation of 25 individual images, Iapetus (back) passes behind Rhea (front) as it moves around in its orbit of Saturn. The camera was pointing toward RHEA at approximately 1,792,407 kilometers away, and the image was taken using the BL1 and CL2 filters. This image has not been validated or calibrated. A validated/calibrated image will be archived with the NASA Planetary Data System in 2013.