Two moons that have profound impacts on the rings, Mimas and Prometheus,
are seen here with the F ring.
Mimas (396 kilometers, or 246 miles across), the larger and much more
distant of the moons, creates the Cassini division between the A and B
rings.
Prometheus (86 kilometers, or 53 miles across), although much smaller than
Mimas, is half of a duo responsible for maintaining the narrow F ring.
The Cassini-Huygens mission is a cooperative project of NASA, the European
Space Agency and the Italian Space Agency. 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 and its two onboard cameras were designed, developed and
assembled at JPL. The imaging operations center is based at the Space
Science Institute in Boulder, Colo.
For more information about the Cassini-Huygens mission visit
http://saturn.jpl.nasa.gov/. The Cassini imaging team
homepage is at http://ciclops.org.
