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Summary

Description
English: Date Acquired: October 6, 2008

Image Mission Elapsed Time (MET): 131770591 Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS) WAC Filter: 7 (750 nanometers) Resolution: 500 meters/pixel (0.31 miles/pixel) Scale: Rudaki crater has a diameter of 120 kilometers (75 miles) Spacecraft Altitude: 2,800 kilometers (1,700 miles)

Of Interest: This WAC image shows a close-up view of the crater Rudaki, named for the Persian poet of the late 800s and early 900s. On the floor of Rudaki and also in a broad region surrounding Rudaki to the west are smooth plains, which are far less cratered than the neighboring terrain (except for the small secondary craters from the large, fresh crater to the west of Rudaki). Detailed studies of Mariner 10 images led to the conclusion that these plains near Rudaki were formed by volcanic flows on the surface of Mercury. This image from MESSENGER’s second flyby of Mercury shows some nice examples of craters in the plains that appear to have been significantly flooded with lava, leaving only their circular rims preserved. This WAC image is one of five scenes in a high-resolution color mosaic obtained just after MESSENGER’s closest approach to Mercury. Three of the other scenes have already been released: the first image after closest approach, a frame showing the craters Polygnotus and Boethius, and a view of Thākur crater. As was done to create the color composite images of Thākur crater, images acquired in all 11 of the WAC’s narrow-band color filters are being used to study the volcanic plains around Rudaki in more detail than was possible from the limited color data of the Mariner 10 mission.

Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington
Date
Source http://messenger.jhuapl.edu/gallery/sciencePhotos/image.php?page=2&gallery_id=2&image_id=254
Author NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

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Public domain 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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6 October 2008

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Date/TimeThumbnailDimensionsUserComment
current19:02, 13 June 2009Thumbnail for version as of 19:02, 13 June 20091,018 × 1,300 (1.57 MB)Bryan Derksen{{Information |Description={{en|1= Date Acquired: October 6, 2008 Image Mission Elapsed Time (MET): 131770591 Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS) WAC Filter: 7 (750 nanometers) Resolution: 500 meters/pixel (0.31 m

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