Astronomy Picture of the Day
January 3, 2015

Unnamed and relatively 'Fresh' Impact Crater in Tharsis (CTX Frame)
Unnamed and relatively 'Fresh' Impact Crater in Tharsis (CTX Frame)

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

This image, taken by the NASA - Mars Reconnaissance Orbiter on November, 7, 2010, shows us an approximately 5 Km (such as about 3,105 miles) diameter Unnamed Impact Crater that is one of the rare examples of a (relatively speaking) fresh "lunar-like" Impact Crater on Mars. This Unnamed Impact Crater formed in the Tharsis Region, which is the largest Volcanic District of Mars that harbors, among others, the Great Olympus Mons - as a matter of fact, this Unnamed Impact Crater lies just about 150 Km (such as approx. 93,15 miles) from the Flanks of the tallest Mountain of the entire Solar System.

Mars Local Time: 15:35 (Middle Afternoon)
Coord. (centered): 11,391° North Lat. and 226,379° East Long.
Spacecraft altitude: 276,0 Km (such as about 171,396 miles)
Original image scale range: 27,6 cm/pixel (with 1 x 1 binningso objects ~ 83 cm across are resolved
Map projected scale: 25 cm/pixel
Emission Angle: 6,1°
Phase Angle: 60,5°
Solar Incidence Angle: 54° (meaning that the Sun was about 36° above the Local Horizon at the time the picture was taken)
Solar Longitude: 177,3° (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 b/w and NON Map-Projected frame identified by the serial n. ESP_020077_2540) has been additionally processed, reduced in size to fit the page, contrast enhanced, Gamma corrected, 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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