CICLOPS: Cassini Imaging Central Laboratory for OPerationS

Ragged Crescent
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Rhea's devastated surface creates a jagged terminator as mountains and crater rims break-up the line between day and night. Terrain on Rhea's night side is dimly lit by reflected light from Saturn.

The view looks toward the southern hemisphere on the moon's trailing side. North on Rhea (1,528 kilometers, 949 miles across) is up.

The image was taken in visible green light with the Cassini spacecraft narrow-angle camera on May 22, 2006 at a distance of approximately 263,000 kilometers (164,000 miles) from Rhea and at a Sun-Rhea-spacecraft, or phase, angle of 138 degrees. Image scale is 2 kilometers (about 1 mile) per pixel.

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: June 27, 2006 (PIA 08208)
Image/Caption Information
  Ragged Crescent
PIA 08208

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