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A View Over Mercury's Horizon

Target Name:  Mercury
Spacecraft:  MESSENGER
Produced by:  NASA/JHUAPL
Copyright: Copyright Free
Date Released: October 9, 2008

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NameTypeWidth x HeightSize
VSS00111.jpgJPEG1018 x 1024104K
VSS00111.tifTIFF1018 x 1024553K

Date Acquired: October 6, 2008
Image Mission Elapsed Time (MET): 131766595
Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS)
Resolution: 410 meters/pixel (0.25 miles/pixel) near the bottom of the image
Scale: The bottom length of the image is about 420 kilometers (260 miles)
Spacecraft Altitude: 16,000 kilometers (9,900 miles)

This image was taken about 54 minutes before MESSENGER's closest approach to Mercury during the mission's second flyby of the innermost planet in the Solar System. The striking image shows a view looking over Mercury's horizon into the darkness of space. The surface in this image is located in the northern portion of the sunlit, crescent-shaped planet seen as the spacecraft approached Mercury. The low Sun angle creates distinct shadows, enhancing the visibility of the roughness of the surface, which is especially prominent for material ejected from, and surrounding, the impact crater cut by the left edge of this image.

Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

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