File:Voyager_2_Triton_14bg_r90ccw_colorized.jpg
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Summary
DescriptionVoyager 2 Triton 14bg r90ccw colorized.jpg |
English: Triton's south polar terrain photographed by the Voyager 2 spacecraft. About 50 dark plumes mark what may be ice volcanoes.
PIA00059: Triton South Polar Terrain Original Caption Released with Image: This image of the south polar terrain of Triton, taken on Aug. 25, 1989 reveals about 50 dark plumes or 'wind streaks' on the icy surface. The plumes originate at very dark spots generally a few miles in diameter and some are more than 100 miles long. The spots which clearly mark the source of the dark material may be vents where gas has erupted from beneath the surface and carried dark particles into Triton's nitrogen atmosphere. Southwesterly winds then transported the erupted particles, which formed gradually thinning deposits to the northeast of most vents. It is possible that the eruptions have been driven by seasonal heating of very shallow subsurface deposits of volatiles, and the winds transporting particles similarly may be seasonal winds. The polar terrain, upon which the dark streaks have been deposited, is a region of bright materials mottled with irregular, somewhat dark patches. The pattern of irregular patches suggests that they may correspond to lag deposits of moderately dark material that cap the bright ice over the polar terrain. The Voyager Mission is conducted by JPL for NASA's Office of Space Science and Applications. |
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Date | (Photojournal date: 1996-09-26) | ||||
Source |
http://voyager.jpl.nasa.gov/gallery/images/neptune/14bg.jpg from http://voyager.jpl.nasa.gov/gallery/neptune.html https://photojournal.jpl.nasa.gov/catalog/PIA00059 |
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Author | NASA/JPL | ||||
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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: colorized using the GIMP "sample colorize" tool. Modifications made by Ilmari Karonen.
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Licensing
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This work is based on a work in the public domain. It has been digitally enhanced and/or modified. This derivative work has been (or is hereby) released into the public domain by its author, Ilmari Karonen. This applies worldwide.
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Public domainPublic domainfalsefalse |
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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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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 23:05, 3 April 2010 | ![]() | 795 × 800 (157 KB) | Ilmari Karonen | {{Information |Description={{en|1=Triton's south polar terrain photographed by the Voyager 2 spacecraft. About 50 dark plumes mark what may be ice volcanoes. This version has been rotated 90 degrees counterclockwise and artificially colorized based on |
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