Friday, January 18, 2013

Young Impact Crater


This image, taken with the Narrow Angle Camera (NAC), shows an unnamed complex crater in Mercury's southern hemisphere. The sharpness of the terraced walls and central peaks indicate that the crater is relatively young. Also visible is a secondary crater chain that crosses the northern half of the crater floor, most likely created by the ejecta of an impact outside of the field of view.

Date acquired: December 17, 2012
Image Mission Elapsed Time (MET): 264215266
Image ID: 3155492
Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS)
Center Latitude: -23.01°
Center Longitude: 112.1° E
Resolution: 205 meters/pixel
Scale: This crater is about 75 km (47 mi.) in diameter.
Incidence Angle: 41.0°
Emission Angle: 1.6°
Phase Angle: 39.4°

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

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