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December 20, 2013
Release Date: December 19, 2013 Topics: NAC, Named Craters Date acquired: January 13, 2012 Image Mission Elapsed Time (MET): 234915233 Image ID: 1259055 Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS) Center Latitude: -35.82° Center Longitude: 40.72° E Resolution: 165 meters/pixel Scale: Lennon crater is 95 km (59 mi.) in diameter Incidence Angle: 71.1° Emission Angle: 20.2° Phase Angle: 70.9° Of Interest: Imagine some ejecta It isn't hard to do Terraced walls and impact melt Secondary craters too Imagine central peaks Rising above the floor... You may say I'm a complex crater But I'm not the only one Someday more will join us On the planet closest to the sun. Lennon crater was recently named to honor English musician/singer/songwriter John Lennon (1940-1980). This image was acquired as part of MDIS's high-resolution stereo imaging campaign. Images from the stereo imaging campaign are used in combination with the surface morphology base map or the albedo base map to create high-resolution stereo views of Mercury's surface, with an average resolution of 200 meters/pixel. Viewing the surface under the same Sun illumination conditions but from two or more viewing angles enables information about the small-scale topography of Mercury's surface to be obtained. The MESSENGER spacecraft is the first ever to orbit the planet Mercury, and the spacecraft's seven scientific instruments and radio science investigation are unraveling the history and evolution of the Solar System's innermost planet. During the first two years of orbital operations, MESSENGER acquired over 150,000 images and extensive other data sets. MESSENGER is capable of continuing orbital operations until early 2015. Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

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