File:Saturn-day-earth-smiled-1000x600.png
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描述Saturn-day-earth-smiled-1000x600.png |
English: On July 19, 2013, in an event celebrated the world over, NASA's Cassini spacecraft slipped into Saturn's shadow and turned to image the planet, seven of its moons, its inner rings -- and, in the background, our home planet, Earth.
With the sun's powerful and potentially damaging rays eclipsed by Saturn itself, Cassini's onboard cameras were able to take advantage of this unique viewing geometry. They acquired a panoramic mosaic of the Saturn system that allows scientists to see details in the rings and throughout the system as they are backlit by the sun. This mosaic is special as it marks the third time our home planet was imaged from the outer solar system; the second time it was imaged by Cassini from Saturn's orbit; and the first time ever that inhabitants of Earth were made aware in advance that their photo would be taken from such a great distance. With both Cassini's wide-angle and narrow-angle cameras aimed at Saturn, Cassini was able to capture 323 images in just over four hours. This final mosaic uses 141 of those wide-angle images. Images taken using the red, green and blue spectral filters of the wide-angle camera were combined together to create this natural-color view. |
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来源 | http://www.jpl.nasa.gov/spaceimages/details.php?id=PIA17172 |
作者 | NASA / JPL / SSI / CICLOPS |
其他版本 | PIA17172 Saturn eclipse mosaic bright crop.jpg - full size, cropped, jpg version (8,400 × 3,500 pixels, 4.49 MB); The Day the Earth Smiled - PIA17172.jpg - full size jpg version (9,000 × 3,500 pixels, 4.78 MB); PIA17172 - The Day the Earth Smiled.jpg - full size, darker, more compressed jpg version (9,000 × 3,500 pixels, 739 KB); The Day the Earth smiled.jpg - half size, darker, annotated jpg version (4,500 × 1,750 pixels, 1.64 MB); The Faces of 'Wave at Saturn'.jpg - faces mosaic version (15,000 × 5,833 pixels, 25.66 MB) |
许可协议
Public domainPublic domainfalsefalse |
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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12 11 2013
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当前 | 2013年11月12日 (二) 21:06 | 1,000 × 600(243 KB) | Girona7 | User created page with UploadWizard |
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