Wednesday, April 17, 2013

Donalaitis Crater


The recently named Donalaitis crater near the center of this image exhibits bright reddish deposits on its floor, which contrast starkly with the more relatively blue hues of the surrounding terrain. Donelaitis crater was named for Kristijonas Donelaitis (1714-1780), a Lithuanian poet. His classic poem, 'The Seasons (Metai)', describes the lives of Lithuanian peasants, who at the time of its writing were being pushed into serfdom as most of their country was annexed by the Russian Empire.

Date acquired: August 21, 2011
Image Mission Elapsed Time (MET): 222408661, 222408681, 222408665
Image ID: 658976, 658981, 658977
Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
WAC filters: 9, 7, 6 (996, 748, 433 nanometers) in red, green, and blue
Center Latitude: -51.81°
Center Longitude: 39.11° E
Resolution: 874 meters/pixel
Scale: Donelaitis crater is 84.5 km (52.5 mi.) across.
Incidence Angle: 56.2°
Emission Angle: 0.5°
Phase Angle: 55.7°

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

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