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Saturn - Tethys from 594,000 kilometers (368,000 miles) away
Voyager 2 obtained this image of Tethys on Aug. 25, when the spacecraft was 594,000 kilometers (368,000 miles) from this satellite of Saturn. This photograph was compiled from images taken through the violet, clear and green filters of Voyager's narrow-angle camera.
Tethys shows two distinct types of terrain--bright, densely cratered regions; and relatively dark, lightly cratered planes that extend in a broad belt across the satellite. The densely cratered terrain is believed to be part of the ancient crust of the satellite; the lightly cratered planes are thought to have been formed later by internal processes. Also clearly seen is a trough that runs parallel to the terminator (the day-night boundary, seen at right). This trough is an extension of the huge canyon system Voyager 1 saw last fall. This system extends nearly two-thirds the distance around Tethys.
The Voyager Project is managed for NASA by the Jet Propulsion Laboratory, Pasadena, Calif.
Acquired: August 1981 |
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PIA 01392
Full Size 400x400:
JPEG 11 KB
PNG 76 KB
TIFF 117 KB
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