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Vivaldi: At Sunset and Now at Sunrise
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Vivaldi: At Sunset and Now at Sunrise
Release Date: October 8, 2008
Topics: Crater Chains, Mercury Flyby 2,

Date Acquired: October 6, 2008
Image Mission Elapsed Time (MET): 131771928
Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS)
Resolution: 250 meters/pixel (0.16 miles/pixel) near the bottom of the image
Scale: The diameter of Vivaldi crater is 213 kilometers (133 miles)
Spacecraft Altitude: 9,800 kilometers (6,100 miles)

Of Interest: One of the more dramatic craters seen by MESSENGER during its first flyby of Mercury this past January was Vivaldi. Right at the day/night terminator, the crater was slipping away into darkness as Mercury slowly rotated. Two days ago, MESSENGER made its second flyby of the innermost planet, and once again captured a view of Vivaldi, this time at sunrise. Long shadows are draped across the floor of this feature, which is actually considered a “small” double-ring basin despite having a diameter of 213 kilometers (133 miles). The low Sun illumination also highlights ridges, valleys, and chains of craters radiating away from Vivaldi.

Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

For information regarding the use of MESSENGER images, see the image use policy.


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