File:Triton close.jpg
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[edit]DescriptionTriton close.jpg |
Français : Photo de Triton prise par Voyager 2 lors de son passage le 25 août 1989.
source: http://nssdc.gsfc.nasa.gov/photo_gallery/photogallery-neptune.html#satellites description originale: PUBLIC INFORMATION OFFICE JET PROPULSION LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PASADENA, CALIF. 91109. TELEPHONE (818) 354-5011 PHOTO CAPTION (TOP) August 29, 1989 P-34764C Voyager 2-N77 Voyager 2 obtained this high-resolution color image of Neptune's large satellite Triton during its close flyby on Aug. 25, 1989. Approximately a dozen individual images were combined to produce this comprehensive view of the Neptune-facing hemisphere of Triton. Fine detail is provided by high-resolution, clear-filter images, with color information added from lower-resolution frames. The large south polar cap at the bottom of the image is highly reflective and slightly pink in color; it may consist of a slowly evaporating layer of nitrogen ice deposited during the previous winter. From the ragged edge of the polar cap northward the satellite's face is generally darker and redder in color. This coloring may be produced by the action of ultraviolet light and magnetospheric radiation upon methane in the atmosphere and surface. Running across this darker region, approximately parallel to the edge of the polar cap, is a band of brighter white material that is almost bluish in color. The underlying topography in this bright band is similar, however, to that in the darker, redder regions surrounding it. The Voyager Mission is conducted by JPL for NASA's Office of Space Science and Applications. |
Date | 28 March 2004 (original upload date) |
Source | Transferred from fr.wikipedia to Commons by Korrigan using CommonsHelper. |
Author | The original uploader was Looxix at French Wikipedia. |
Permission (Reusing this file) |
PD-USGOV-NASA; PD NASA. |
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[edit]Public domainPublic domainfalsefalse |
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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[edit]- 2004-03-28 16:34 Looxix 893×749×??? (165401 bytes)
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current | 08:00, 18 November 2015 | 880 × 736 (158 KB) | SteinsplitterBot (talk | contribs) | Bot: Image rotated by 180° | |
15:53, 20 September 2008 | 893 × 749 (162 KB) | File Upload Bot (Magnus Manske) (talk | contribs) | {{BotMoveToCommons|fr.wikipedia}} {{Information |Description={{fr|;description: Photo de Triton prise par Voyager 2 lors de son passage le 25 août 1989. ;source: http://nssdc.gsfc.nasa.gov/photo_gallery/photogallery-neptune.html#satellites ;copyright: |
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