File:Mountainous Shoreline of Sputnik Planum (PIA20198).png
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[編輯]描述Mountainous Shoreline of Sputnik Planum (PIA20198).png |
Українська: Один із найдетальніших знімків Плутона, зроблених апаратом New Horizons. Отриманий 14 липня 2015 (за 15 хвилин до максимального зближення) з відстані 17 тисяч км. Видно край рівнини Sputnik Planum та гори, що її оточують. Гори складаються здебільшого з водяного льоду, а поверхня рівнини — з азотного. Ширина знімка — біля 80 км. English: Original description: In this highest-resolution image from NASA's New Horizons spacecraft, great blocks of Pluto's water-ice crust appear jammed together in the informally named al-Idrisi mountains. Some mountain sides appear coated in dark material, while other sides are bright. Several sheer faces appear to show crustal layering, perhaps related to the layers seen in some of Pluto's crater walls. Other materials appear crushed between the mountains, as if these great blocks of water ice, some standing as much as 1.5 miles high, were jostled back and forth. The mountains end abruptly at the shoreline of the informally named Sputnik Planum, where the soft, nitrogen-rich ices of the plain form a nearly level surface, broken only by the fine trace work of striking, cellular boundaries and the textured surface of the plain's ices (which is possibly related to sunlight-driven ice sublimation). This view is about 50 miles wide. The top of the image is to Pluto's northwest.
These images were made with the telescopic Long Range Reconnaissance Imager (LORRI) aboard New Horizons, in a timespan of about a minute centered on 11:36 UT on July 14 -- just about 15 minutes before New Horizons' closest approach to Pluto -- from a range of just 10,000 miles (17,000 kilometers). They were obtained with an unusual observing mode; instead of working in the usual "point and shoot," LORRI snapped pictures every three seconds while the Ralph/Multispectral Visual Imaging Camera (MVIC) aboard New Horizons was scanning the surface. This mode requires unusually short exposures to avoid blurring the images. |
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來源 | http://photojournal.jpl.nasa.gov/catalog/PIA20198 (brightness of the original image was somewhat increased) |
作者 | NASA |
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[編輯]Public domainPublic domainfalsefalse |
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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目前 | 2015年12月5日 (六) 17:02 | 2,520 × 2,720(3.47 MB) | Sneeuwschaap(留言 | 貢獻) | User created page with UploadWizard |
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