Mercury in Limb-o

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Caption:

This image, taken with the Wide Angle Camera (WAC) , provides us with a beautiful view of a portion of Mercury's southern hemisphere. The bright rayed crater near the limb is Debussy , named for the impressionist era French composer. Also visible, near the center of the image, is Matabei , a small crater distinguishable by its unique dark rays.

This image was acquired as part of MDIS's limb imaging campaign. Once per week, MDIS captures images of Mercury's limb, with an emphasis on imaging the southern hemisphere limb. These limb images provide information about Mercury's shape and complement measurements of topography made by the Mercury Laser Altimeter (MLA) of Mercury's northern hemisphere.

Date acquired: September 19, 2011
Image Mission Elapsed Time (MET): 224912678
Image ID: 779811
Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
WAC filter: 7 (748 nanometers)
Center Latitude: -36.51°
Center Longitude: 325.0° E
Scale: Mercury's radius is approximately 2440 km (1516 miles)
Phase Angle: 70.6°

Background Info:

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, MDIS is scheduled to acquire more than 75,000 images in support of MESSENGER's science goals.

These images are from MESSENGER, a NASA Discovery mission to conduct the first orbital study of the innermost planet, Mercury. For information regarding the use of images, see the MESSENGER image use policy .

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