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 Director