Prometheus and Pandora shepherd Saturn’s F ring into shape

The visible light images of Saturn’s F ring in this sequence were acquired using Cassini’s narrow angle camera on April 13, 2005 from a distance of approximately 1.2 million kilometres (700,000 miles) from Saturn. Several background stars can be seen moving across the field during the film. The slight jerkiness of the motion is from the original Nasa footage; I might correct this if I get a chance. Original footage taken from: