CICLOPS: Cassini Imaging Central Laboratory for OPerationS
Tethys and Rings

Tethys and Rings
PIA 06649

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  Two large impact basins, including the 450 kilometer- (280 mile-) wide Odysseus basin (top), mark the face of Tethys (1,062 kilometers, 660 miles across). The outer edge of Saturn's rings is visible at lower right.

Just discernable is a slight north-south difference in brightness across Tethys' surface.

North on Tethys is up and tilted about 20 degrees to the left. This view shows principally the anti-Saturn hemisphere of Tethys.

The image was taken in visible light with the narrow angle camera on April 3, 2005, from a distance of approximately 1.8 million kilometers (1.1 million miles) from Tethys and at a Sun-Tethys-spacecraft, or phase, angle of 80 degrees. The image scale is 11 kilometers (7 miles) 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: May 16, 2005 (PIA 06649)
Image/Caption Information