English: The 10 frames shown here are each a small section of a sum of 6 to 7 separate narrow angle images taken through the clear filter and spanning the entire 39.5 hour period. (The ring was also detected in the red region of the electromagnetic spectrum at ~ 757 nanometers, where the human eye is incapable of seeing.) The scattered light background has been removed, the images have been contrast stretched to enhance the ring, and the contours in the image, as well as the small variations in brightness of the ring from one frame to the next, are a result of the image processing and background removal. The ring clearly grows in angular extent, from upper left to lower right, as the spacecraft approaches the planet.