CICLOPS: Cassini Imaging Central Laboratory for OPerationS
Older Southern Fractures?

Older Southern Fractures?
PIA 07581

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  Dione's southern polar region (shown here) contains fractures whose softened appearance suggests that they have different ages than the bright braided fractures seen in the image to the north. This region is also notably brighter than the near equatorial terrain at the top of the image.

At center, a several of the bright, radial streaks mark a feature named Cassandra, which may be a rayed crater or a tectonic feature.

This view of Dione (1,123 kilometers, 698 miles across) captures high southern latitudes on the moon's trailing hemisphere.

The image was taken in visible light with the narrow angle camera on Aug. 1, 2005 from a distance of approximately 269,000 kilometers (167,000 miles) from Dione and at a Sun-Dione-spacecraft, or phase, angle of 41 degrees. Image scale is 2 kilometers (1.2 miles) per pixel.

[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: September 7, 2005 (PIA 07581)
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