File:Derain crater.png
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editDescriptionDerain crater.png |
English: Image Mission Elapsed Time (MET): 131774051
Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS) Resolution: 540 meters/pixel (0.34 miles/pixel) on the left side of the image Scale: This image is about 550 kilometers tall (340 miles) Spacecraft Altitude: 21,200 kilometers (13,100 miles) Of Interest: A crater discovered in the newly imaged portion of Mercury’s surface during MESSENGER’s second Mercury flyby has uncommonly dark material within and surrounding the crater. The material is darker than the neighboring terrain such that this crater with a diameter of 180 kilometers (110 miles) is easily identified even in a distant global image of Mercury; it is located just south of the equator near the limb of the planet in this previously released Wide Angle Camera (WAC) image. The dark halo may be material with a mineralogical composition different from the majority of Mercury’s visible surface. Craters with similar dark material on or near their rims were seen on the floor of the Caloris basin during MESSENGER’s first flyby. Images acquired though the 11 different narrow-band color filters of the WAC during MESSENGER’s second flyby will be crucial to an understanding of the nature of this newly seen, unusual feature. |
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Source | http://messenger.jhuapl.edu/gallery/sciencePhotos/image.php?page=1&gallery_id=2&image_id=227 |
Author | NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington |
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ![]() |
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current | 22:42, 2 May 2010 | ![]() | 1,018 × 1,024 (1.1 MB) | Bryan Derksen (talk | contribs) | {{Information |Description={{en|1=Image Mission Elapsed Time (MET): 131774051 Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS) Resolution: 540 meters/pixel (0.34 miles/pixel) on the left side of the image Scale: This image i |
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