| Date acquired: September 20, 2011 Image Mission Elapsed Time (MET): 225001789 Image ID: 783910 Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS) Center Latitude: -55.50° Center Longitude: 16.58° E Resolution: 361 meters/pixel Scale: The edges of this image are about 360 km (220 mi.) long Incidence Angle: 57.9° Emission Angle: 1.3° Phase Angle: 58.9° Of Interest: This scene captures an area of Mercury's southern hemisphere where none of the craters have yet had names approved by the International Astronomical Union. A variety of terrain types are found in this region: rugged heavily cratered older surfaces, smooth plains on crater floors, and younger bright-rayed craters. This image was acquired as part of MDIS's high-resolution surface morphology base map. The surface morphology base map will cover more than 90% of Mercury's surface with an average resolution of 250 meters/pixel (0.16 miles/pixel or 820 feet/pixel). Images acquired for the surface morphology base map typically have off-vertical Sun angles (i.e., high incidence angles) and visible shadows so as to reveal clearly the topographic form of geologic features. | |
| Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington |
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