File:PIA09813 Epimetheus S. polar region.jpg

PIA09813_Epimetheus_S._polar_region.jpg(600 × 580 pixels, file size: 153 KB, MIME type: image/jpeg)


The Cassini spacecraft's close flyby of Epimetheus in December 2007 returned detailed images of the moon's south polar region.

The view shows what might be the remains of a large impact crater covering most of this face, and which could be responsible for the somewhat flattened shape of the southern part of Epimetheus (116 kilometers, or 72 miles across) seen previously at much lower resolution.

The image also shows two terrain types: darker, smoother areas, and brighter, slightly more yellowish, fractured terrain. One interpretation of this image is that the darker material evidently moves down slopes, and probably has a lower ice content than the brighter material, which appears more like "bedrock." Nonetheless, materials in both terrains are likely to be rich in water ice.

The images that were used to create this enhanced color view were taken with the Cassini spacecraft narrow-angle camera on Dec. 3, 2007. The views were obtained at a distance of approximately 37,400 kilometers (23,000 miles) from Epimetheus and at a Sun-Epimetheus-spacecraft, or phase, angle of 65 degrees. Image scale is 224 meters (735 feet) 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 operations center is based at the Space Science Institute in Boulder, Colo.

For more information about the Cassini–Huygens mission visit The Cassini imaging team homepage is at

The NASA image has been cropped.
Author NASA/JPL/Space Science Institute
This image or video was catalogued by Jet Propulsion Laboratory of the United States National Aeronautics and Space Administration (NASA) under Photo ID: PIA09813.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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3 December 2007

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current22:49, 5 January 2013Thumbnail for version as of 22:49, 5 January 2013600 × 580 (153 KB)AntonsusiTurn back ok, but the margin makes only a smaller, not optimised visible size of the object on pages.
07:59, 19 December 2012Thumbnail for version as of 07:59, 19 December 2012680 × 640 (222 KB)WolfmanSFReverted to version as of 17:18, 11 January 2008 - Solar System objects are normally portrayed with north up, which means solar illumination comes from the side; also, there's no artistic advantage to eliminating the margin
02:39, 9 January 2011Thumbnail for version as of 02:39, 9 January 2011580 × 600 (146 KB)Antonsusicropped, turned upright
17:18, 11 January 2008Thumbnail for version as of 17:18, 11 January 2008680 × 640 (222 KB)WolfmanSFreplace with processed NASA image

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