It All Ends at Mercurys Limb
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It All Ends at Mercury's Limb

August 18, 2011
  • Date acquired: June 28, 2011
  • Image Mission Elapsed Time (MET): 217715590
  • Image ID: 433835
  • Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
  • WAC filter: 7 (748 nanometers)
  • Center Latitude: -29.49°
  • Center Longitude: 133.6° E
  • Resolution: 2792 meters/pixel
  • Scale: Mercury's radius is approximately 2440 km (1516 miles)
  • Incidence Angle: 46.3°
  • Emission Angle: 48.0°
  • Phase Angle: 68.9°

Of Interest: In this limb image of Mercury's southern hemisphere, the enormous Rembrandt basin is visible in the lower left; bright Amaral crater, above Rembrandt in this image, also stands out. Towards the middle of the image is Sher-Gil, a dark-haloed crater.

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.

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.

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