File:MRO image of Mars North Pole.jpg
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![File:MRO image of Mars North Pole.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/c/c3/MRO_image_of_Mars_North_Pole.jpg/237px-MRO_image_of_Mars_North_Pole.jpg?20080427090722)
預覽大小:237 × 600 像素。 其他解析度:95 × 240 像素 | 189 × 480 像素 | 303 × 768 像素 | 404 × 1,024 像素 | 2,000 × 5,060 像素。
原始檔案 (2,000 × 5,060 像素,檔案大小:8.69 MB,MIME 類型:image/jpeg)
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[編輯]描述MRO image of Mars North Pole.jpg |
English: This false-color subframe shows the north polar layered deposits at top and darker materials at bottom exposed in a scarp at the head of Chasma Boreale, a large canyon eroded into the layered deposits. The polar layered deposits appear red because of dust mixed within them, but are ice-rich as indicated by previous observations. The water ice in the layered deposits is probably responsible for the pattern of fractures seen near the top of the scarp. The darker material below the layered deposits may have been deposited as sand dunes, as indicated by the cross-bedding (truncation of curved lines) seen near the middle of the scarp. It appears that brighter, ice-rich layers were deposited between the dark dunes in places.
Image PSP_001334_2645 was taken by the High Resolution Imaging Science Experiment (HiRISE) camera onboard the Mars Reconnaissance Orbiter spacecraft on November 8, 2006. The complete image is centered at 84.4 degrees latitude, 343.5 degrees East longitude. The range to the target site was 317.4 km (198.4 miles). At this distance the image scale ranges from 31.8 cm/pixel (with 1 x 1 binning) to 63.5 cm/pixel (with 2 x 2 binning). The image shown here [below] has been map-projected to 25 cm/pixel. The image was taken at a local Mars time of 1:38 PM and the scene is illuminated from the west with a solar incidence angle of 67 degrees, thus the sun was about 23 degrees above the horizon. At a solar longitude of 132.3 degrees, the season on Mars is Northern Summer.
uploaded by me user debivort, |
來源 | http://hiroc.lpl.arizona.edu/images/PSP/PSP_001334_2645/color.html |
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product of NASA. |
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en:{{Picture of the day}} April 15, 2007
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[編輯]Public domainPublic domainfalsefalse |
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本作品由NASA創作,屬於公有領域。根據NASA的版權政策:“NASA的創作除非另有聲明否則不受版權保護。”(參見:Template:PD-USGov/zh,NASA版權政策或JPL圖像使用政策) | ![]() |
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[編輯]The original description page was here. All following user names refer to en.wikipedia.
- 2006-12-15 05:51 Debivort 2000×5060×8 (9107318 bytes) uploaded by me user debivort, product of NASA.
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日期/時間 | 縮圖 | 尺寸 | 使用者 | 備註 | |
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目前 | 2008年4月27日 (日) 09:07 | ![]() | 2,000 × 5,060(8.69 MB) | Finavon(留言 | 貢獻) | {{Information |Description={{en|This false-color subframe shows the north polar layered deposits at top and darker materials at bottom exposed in a scarp at the head of Chasma Boreale, a large canyon eroded into the layered deposits. The polar layered dep |
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方位 | 標準 |
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水平解析度 | 72 dpi |
垂直解析度 | 72 dpi |
使用軟體 | Adobe Photoshop CS Macintosh |
檔案修改日期時間 | 2006年12月15日 (五) 00:46 |
色彩空間 | sRGB |