Saturday, November 19, 2011

Complex Craters


While many of the most spectacular craters on Mercury are young and rayed, the vast majority are older and have been modified by both internal and external forces over time. The large 90-km crater in this image has been deformed by a lobate scarp and battered by craters up to 30 km in diameter.

Date acquired: October 27, 2011
Image Mission Elapsed Time (MET): 228200113
Image ID: 937596
Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS)
Center Latitude: 5.65°
Center Longitude: 321.9° E
Resolution: 104 meters/pixel
Scale: The large crater in this scene is approximately 90 km (56 miles) in diameter
Incidence Angle: 69.2°
Emission Angle: 66.8°
Phase Angle: 102.0°

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

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