CICLOPS: Cassini Imaging Central Laboratory for OPerationS

Rounding the Rings
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Rounding the Rings
PIA 06497

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  Cassini spied two members of Saturn's family rounding the rings in this image from August 20, 2004.

Moons visible in this image: Mimas (396 kilometers, 246 miles across) is easily seen near upper right, and Epimetheus (113 kilometers 70 miles across) is visible near center, outside the faint F ring.

Three major gaps in Saturn's rings can be seen here as well. The 4,800 kilometer (2,980 mile) -wide Cassini division is the dark swath at lower right. The Encke Gap (325 kilometers, 202 miles wide) and narrow Keeler Gap (42 kilometers, 26 miles wide) are visible as dark arcs near the edge of the A ring. Small clumps of material are visible in the narrow F ring, beyond the edge of the main rings.

The image was taken in visible light with the narrow angle camera from a distance of 9 million kilometers (5.6 million miles) from Saturn. The image scale is 54 kilometers (34 miles) per pixel. Epimetheus has been brightened to aid visibility.

[Caption updated on October 4, 2005.]

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 Cassini-Huygens mission for NASA's Science Mission Directorate, Washington, D.C. 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.

For more information about the Cassini-Huygens mission, visit and the Cassini imaging team home page,

Credit: NASA/JPL/Space Science Institute
Released: October 13, 2004 (PIA 06497)
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