File:Enceladusstripes_cassini.jpg
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描述Enceladusstripes cassini.jpg |
English: As it swooped past the south pole of Saturn's moon Enceladus on July 14, 2005, Cassini acquired high resolution views of this puzzling ice world. From afar, Enceladus exhibits a bizarre mixture of softened craters and complex, fractured terrains.
This large mosaic of 21 narrow-angle camera images have been arranged to provide a full-disk view of the anti-Saturn hemisphere on Enceladus. This mosaic is a false-color view that includes images taken at wavelengths from the ultraviolet to the infrared portion of the spectrum, and is similar to another, lower resolution false-color view obtained during the flyby (see PIA06249). In false-color, many long fractures on Enceladus exhibit a pronounced difference in color (represented here in blue) from the surrounding terrain. A leading explanation for the difference in color is that the walls of the fractures expose outcrops of coarse-grained ice that are free of the powdery surface materials that mantle flat-lying surfaces. The original images in the false-color mosaic range in resolution from 350 to 67 meters (1,148 to 220 feet) per pixel and were taken at distances ranging from 61,300 to 11,100 kilometers (38,090 to 6,897 miles) from Enceladus. The mosaic is also part of a movie sequence of images from this flyby (see PIA06253). The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Science Mission Directorate, Washington, D.C. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging team is based at the Space Science Institute, Boulder, Colo.Français : Vue à haute résolution d'Encelade prise par la sonde Cassini le 14 juillet 2005. Cette image est une mosaïque de 21 clichés représentant la face d'Encelade éloignée de Saturne. Cette image en fausses couleurs a été obtenue à partir de clichés à différentes longueur d'ondes allant de l'infrarouge à 'ultraviolet. Ceci permet de mettre en évidence les zones de fractures (en bleu). Ces différences seraient dues au fait que les parois de ces failles sont à nu, tandis que le reste du satellite est recouvert d'une couche poudreuse.
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来源 | [http://photojournal.jpl.nasa.gov/catalog/PIA06254 (http://photojournal.jpl.nasa.gov/jpeg/PIA06254.jpg) |
作者 | NASA/JPL/Space Science Institute |
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根据最有价值图像标准,这张图像被评定为在Enceladus (moon of Saturn)范畴内最有价值的共享资源图像。你可以在Commons:Valued image candidates/Enceladusstripes cassini.jpg参看它的提名。 |
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本文件完全由NASA创作,在美国属于公有领域。根据NASA的版权方针,NASA的材料除非另有声明否则不受版权保护。(参见Template:PD-USGov/zh、NASA版权方针页面或JPL图片使用方针。) | ![]() |
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共享资源质量评价 简体中文(已转写)
维基共享资源最有价值图像 简体中文(已转写)
14 7 2005
PIA06254
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日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
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当前 | 2019年8月28日 (三) 07:14 | ![]() | 3,237 × 3,812(3.61 MB) | FriedrichKieferer | Better quality. |
2005年9月7日 (三) 14:22 | ![]() | 3,237 × 3,812(1.21 MB) | Startaq | * '''Source:''' [http://photojournal.jpl.nasa.gov/catalog/PIA06254 NASA Planetary Photojournal PIA06254] * '''Original Caption Released with Image:''' As it swooped past the south pole of Saturn's moon Enceladus on July 14, 2005, Cassini acquired high r |
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