File:Umbcolor.jpg
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Summary
[edit]This image is an adaptation of a figure from an article by Paul Helfenstein, Peter C.Thomas and Joseph Veverka published in the March 23, 1989 issue of Nature. The color image is an albedo map of Umbriel after shading correction and contrast enhancement. Dark regions are represented as red and bright regions are represented as blue. The two white regions are bright ejecta from two fresh craters. In the article the authors suggested that the dark areas are the result of an internally driven resurfacing event early in Umbriel's history involving darker material. Similar ice volcanism is also seen on Miranda, Ariel, and possibly on Oberon. They also state that the limited data also hint that the darker regions are lower in elevation.
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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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current | 12:47, 26 August 2006 | 1,050 × 525 (57 KB) | Brallan~commonswiki (talk | contribs) | == Description == This image is an adaptation of a figure from an article by Paul Helfenstein, Peter C.Thomas and Joseph Veverka published in the March 23, 1989 issue of Nature. The color image is an albedo map of Umbriel after shading correction and cont |
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