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Color Image of Ariel

Target Name:  Ariel
Spacecraft:  Voyager 2
Produced by:  Calvin J. Hamilton
Copyright: © Calvin J. Hamilton
Date Taken:  24 January 1986
Date Released: 11 August 2001
(Publisher Permission Request)

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This image of Ariel is a a composite of four clear filter images taken by the Voyager 2 spacecraft on January 24, 1986, from a distance of 130,000 kilometers (80,000 miles). Two of these images that covered the terminator on the right were smeared because of the longer exposure times. The color is based upon lower resolution color images.

Much of Ariel's surface is densely pitted with craters 5 to 1O kilometers (3 to 6 mi) across. These craters are close to the threshold of detection in this picture. Numerous valleys and fault scarps crisscross the highly pitted terrain. Voyager scientists believe the valleys have formed over down-dropped fault blocks (graben); apparently, extensive faulting has occurred as a result of expansion and stretching of Ariel's crust. The largest fault valleys, near the terminator at right, as well as a smooth region near the center of this image, have been partly filled with deposits that are younger and less heavily cratered than the pitted terrain. Narrow, somewhat sinuous scarps and valleys have been formed, in turn, in these young deposits. It is not clear whether these sinuous features have been formed by faulting or by the flow of fluids.

This image is Copyright © by Calvin J. Hamilton. Any commercial/for-profit use of this image needs to be addressed to Calvin J. Hamilton.

Copyright © 1995-2013 by Calvin J. Hamilton. All rights reserved.