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MESSENGER imaged Mercury's partially sunlit surface on its approach to the planet yesterday. This WAC image reveals approximately an additional 5% of the surface (outlined in red) that had been previously unseen by spacecraft. Among the many newly imaged surface features are impact craters, smooth plains, and an intriguing double-ring basin approximately 260 kilometers (125 miles) in diameter. Rembrandt basin straddles Mercury's terminator (along the right side of the image).
Information
- Taken in
- Author
- NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington
- Description
-
MESSENGER imaged Mercury's partially sunlit surface on its approach to the planet yesterday. This WAC image reveals approximately an additional 5% of the surface (outlined in red) that had been previously unseen by spacecraft. Among the many newly imaged surface features are impact craters, smooth plains, and an intriguing double-ring basin approximately 260 kilometers (125 miles) in diameter. Rembrandt basin straddles Mercury's terminator (along the right side of the image).
Date Acquired: September 29, 2009
Image Mission Elapsed Time (MET): 162741055
Instrument: Wide Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS)
WAC Filter: 7 (750 nanometers)
Resolution: 4.8 kilometers/pixel (3.0 miles/pixel)
Scale: Mercury's diameter is 4880 kilometers (3030 miles)
Spacecraft Altitude: 26,900 kilometers (16,700 miles)
- Created on
- Wednesday 30 September 2009
- Albums
- US SPACE PROGRAM / PROBES / MERCURY / MESSENGER / Annoted/Science
- Source link
- https://photojournal.jpl.nasa.gov
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- Public Domain
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