File:A Patch of Black On Mercury.jpg

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原始檔案 ‎（1,018 × 1,024 像素，檔案大小：137 KB，MIME 類型：image/jpeg）

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描述
English: The crater in the lower right-hand corner of this image has a patch of very dark material located near its centre. The region of this image has been seen only with the Sun high overhead in the sky. Such lighting conditions are good for recognizing colour differences of rocks but not well suited for ascertaining the topography of surface features from shadows. The shape of the surface in this area is difficult to resolve given the lighting angle, but the dark patch is not in shadow. The dark colour is likely due to rocks that have a different mineralogical composition from that of the surrounding surface.

Image Mission Elapsed Time (MET): 131771988 Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS) Resolution: 260 meters/pixel Scale: This image is about 270 kilometres across

Spacecraft Altitude: 10,100 kilometres
日期
來源 NASA Jet Propulsion Laboratory Photojournal
作者 NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington
其他版本 File:Hemingway crater.png

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Public domain 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2009年7月6日 (一) 18:30於 2009年7月6日 (一) 18:30 版本的縮圖1,018 × 1,024（137 KB）Originalwana（留言 | 貢獻）{{Information |Description={{en|1=The crater in the lower right-hand corner of this image has a patch of very dark material located near its centre. The region of this image has been seen only with the Sun high overhead in the sky. Such lighting condition

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