Quantcast
Last updated on April 16, 2014 at 10:37 EDT
373 of 1081

August 30, 2012
Date acquired: July 22, 2012 Image Mission Elapsed Time (MET): 251403729 Image ID: 2244310 Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS) Center Latitude: -36.51° Center Longitude: 118.53° E Resolution: 103 meters/pixel Scale: The crater at the center of the image is approx. 42 km (26 mi.) across Incidence Angle: 67.1° Emission Angle: 16.8° Phase Angle: 83.5° Of Interest: This image, with north to the top, shows a well-preserved, unnamed complex crater in Mercury's northern hemisphere. The central peak and terraced walls characteristic of complex craters are clearly visible. The smooth floor of the crater is probably composed of solidified impact melt. The continuous ejecta blanket emanating from the crater has softened the texture of the surrounding terrain. This image was acquired as a high-resolution targeted observation. Targeted observations are images of a small area on Mercury's surface at resolutions much higher than the 200-meter/pixel morphology base map. It is not possible to cover all of Mercury's surface at this high resolution, but typically several areas of high scientific interest are imaged in this mode each week. 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. Visit the Why Mercury? section of this website to learn more about the key science questions that the MESSENGER mission is addressing. During the one-year primary mission, MESSENGER acquired 88,746 images and extensive other data sets. MESSENGER is now in a yearlong extended mission, during which plans call for the acquisition of more than 80,000 additional images to support MESSENGER's science goals. Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington