Well Donne - Nasa Messenger Mission Image: Release Date 6 Apr 2012

MESSENGER: MErcury Surface, Space ENvironment, GEochemistry, and Ranging

Date acquired: August 02, 2011 Image Mission Elapsed Time (MET): 220803786 Image ID: 583200 Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS) Center Latitude: 3.32° Center Longitude: 346.0° E Resolution: 108 meters/pixel Scale: Donne crater is about 86 km (53 mi.) in diameter. Incidence Angle: 78.9° Emission Angle: 32.4° Phase Angle: 111.3° Of Interest: This image from the Narrow Angle Camera provides a fine view of the crater Donne. John Donne was an English poet known especially for his sonnets and elegies. Donne crater displays a mound-like central peak that has been somewhat rounded by impact erosion, and well-developed wall terraces. The crater has been modified by lobate scarps that cut the walls and floor. This image was acquired as part of MDIS's high-resolution surface morphology base map. The surface morphology base map covers more than 99% of Mercury's surface with an average resolution of 200 meters/pixel. Images acquired for the surface morphology base map typically are obtained at off-vertical Sun angles (i.e., high incidence angles) and have 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