Saturn's moon Daphnis creates waves of disturbance in the Keeler Gap in this image of the wide A ring and narrow F ring.
Daphnis (8 kilometers, 5 miles across) is a small point of light in the center of this image which shows the moon's gravity creating perturbations in the material at the edges of the narrow gap (see PIA 07809 for a higher-resolution image of this process). Background stars appear as bright specks in the wider Encke Gap of the A ring and elsewhere in the image.
This view looks toward the unilluminated side of the rings from about 60 degrees above the ringplane. The image was taken in visible light with the Cassini spacecraft narrow-angle camera on March 30, 2009. The view was acquired at a distance of approximately 1.3 million kilometers (808,000 miles) from Daphnis and at a Sun-Daphnis-spacecraft, or phase, angle of 69 degrees. Image scale is 8 kilometers (5 miles) per pixel.
The Cassini Equinox Mission is a joint United States and European endeavor. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Science Mission Directorate, Washington, D.C. The Cassini orbiter was designed, developed and assembled at JPL. The imaging team consists of scientists from the US, England, France, and Germany. The imaging operations center and team lead (Dr. C. Porco) are based at the Space Science Institute in Boulder, Colo.