the moon Tethys
Photojournal: PIA06633
Published: April 22, 2005

This view of Saturn's moon Tethys shows the contrast between the more heavily cratered region
near the top and the more lightly cratered (and presumably younger) plains toward the bottom
part of the image and near the limb. Some of the larger craters in the latter region appear to be
somewhat subdued or filled in. Tethys is 1,071 kilometers (665 miles) across.

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

The image was taken with the Cassini spacecraft narrow-angle camera on March 9, 2005,
through a filter sensitive to wavelengths of ultraviolet light centered at 338 nanometers. The
view was obtained at a distance of approximately 200,000 kilometers (127,000 miles) from
Tethys and at a Sun-Tethys-spacecraft, or phase, angle of 120 degrees. Resolution in the image is
1 kilometer (0.6 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 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 team is based at the Space Science Institute,
Boulder, Colo.

For more information about the Cassini-Huygens mission visit . For
additional images visit the Cassini imaging team homepage .

Credit: NASA/JPL/Space Science Institute


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