Astronomy Picture of the Day
May 11, 2013

Well-preserved Unnamed Impact Crater with Ridges
Well-preserved Unnamed Impact Crater with Ridges

Credits: NASA/JPL/University of Arizona - Credits for the additional process. and color.: Dr Paolo C. Fienga/Lunar Explorer Italia/IPF

Mars Local Time: 15:20 (Early Afternoon)
Coord. (centered): 9,515° South Lat. and 16,433° East Long.
Spacecraft altitude: 261,3 Km (such as about 162,267 miles)
Original image scale range: 52,3 cm/pixel (with 2 x 2 binning) so objects ~ 1 mt and 57 cm across are resolved
Map projected scale: 50 cm/pixel
Emission Angle: 0,7°
Phase Angle: 60,4°
Solar Incidence Angle: 60° (meaning that the Sun was about 30° above the Local Horizon at the time the picture was taken)
Solar Longitude: 96,6° (Northern Summer - Southern Winter)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer Italia

This picture (which is a NASA - Original Mars Reconnaissance Orbiter NON-Map Projected CTX b/w frame identified by the serial n. ESP_025557_1705) has been additionally processed and then colorized in Absolute Natural Colors (such as the colors that a human eye would actually perceive if someone were onboard the NASA - Mars Reconnaissance Orbiter and then looked down, towards the Surface of Mars), by using an original technique created - and, in time, dramatically improved - by the Lunar Explorer Italia Team.

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