Saturday, February 4, 2012

Northern Lights


This image, taken with the Wide Angle Camera (WAC), shows an unnamed complex crater in Mercury's northern hemisphere. The crisp morphology of the terraced walls and central peak, and the high-reflectance ejecta blanket and rays surrounding the crater, indicate that the crater is relatively young. Also visible are many secondary craters, possibly resulting from the impact that formed this crater to the west.

Date acquired: January 04, 2012
Image Mission Elapsed Time (MET): 234155258
Image ID: 1222319
Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
WAC filter: 7 (748 nanometers)
Center Latitude: 51.54°
Center Longitude: 95.26° E
Resolution: 176 meters/pixel
Scale: The complex crater is 33 km (20 miles) in diameter
Incidence Angle: 61.6°
Emission Angle: 15.6°
Phase Angle: 48.5°

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

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