|Target Name: Dione, Is a satellite of: Saturn, Mission: Cassini, Spacecraft: Cassini Orbiter, Instrument: Imaging Science Subsystem - Narrow Angle, Product Size: 448 samples x 448 lines, Produced By: Cassini Imaging Team.|
Original Caption Released with Image: The leading hemisphere of Dione displays subtle variations in color across its surface in this false color view.
To create this view, ultraviolet, green and infrared images were combined into a single black and white picture that isolates and maps regional color differences. This "color map" was then superposed over a clear-filter image. The origin of the color differences is not yet understood, but may be caused by subtle differences in the surface composition or the sizes of grains making up the icy soil.
Terrain visible here is on the moon's leading hemisphere. North on Dione (1,126 kilometers, or 700 miles across) is up and rotated 17 degrees to the right.
See PIA07687 for a similar monochrome view.
All images were acquired with the Cassini spacecraft narrow-angle camera on Dec. 24, 2005 at a distance of approximately 597,000 kilometers (371,000 miles) from Dione and at a Sun-Dione-spacecraft, or phase, angle of 21 degrees. Image scale is 4 kilometers (2 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 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 saturn.jpl.nasa.gov. The Cassini imaging team homepage is at ciclops.org.
Image Credit: NASA/JPL/Space Science Institute
NASA images generally are not copyrighted. Unless otherwise noted, images and video on JPL public web sites (public sites ending with a jpl.nasa.gov address) may be used for any purpose without prior permission. The endorsement of any product or service by Caltech, JPL or NASA must not be claimed or implied.
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