Saturn's small moon Daphnis is caught in the act of raising waves on the edges of the Keeler gap. Waves like these allow scientists to locate small moons in gaps and measure their masses.
For more on Daphnis (5 miles, 8 kilometers across) and the Keeler gap, see PIA11655 and PIA06238.
This view looks toward the sunlit side of the rings from about 13 degrees above the ringplane. The image was taken in visible light with the Cassini spacecraft narrow-angle camera on Aug. 14, 2012.
The view was obtained at a distance of approximately 484,000 miles (778,000 kilometers) from Saturn and at a Sun-Saturn-spacecraft, or phase, angle of 4 degrees. Image scale is 3 miles (4 kilometers) per pixel. The F ring has been brightened by a factor of 1.5 relative to the main rings to enhance visibility.
The Cassini Solstice 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.