Astronomy Picture of the Day
March 6, 2014

Bright Sediments in Ladon Basin
Bright Sediments in Ladon Basin

Credits: NASA/JPL-Caltech/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, 13, 2013, shows us some Bright Layered Deposits which have been exposed within a Linear Trough that goes along the Floor of the Ladon Basin. There is a large Channel System that runs into the Basin, called Ladon Valles, and Planetary Sscientists think that the Basin itself could have once been filled with - fresh? - Water, until another Channel - this one going to the North - formed and drained it.


These exposures of Light-Toned Layered Sediments provide us with clues about the Environment that existed within Ladon Basin, at the time when the Waters existing inside it might have ponded (---> become totally still) and then, in time, deposited the abovemntioned Sediments.


Mars Local Time: 14:57 (Early Afternoon)
Coord. (centered): 19,465° South Lat. and 330,356° East Long.
Spacecraft altitude: 263,3 Km (such as about 163,509 miles)
Original image scale range: 26,3 cm/pixel (with 1 x 1 binningso objects ~ 79 cm across are resolved
Map projected scale: 25 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 7,9°
Phase Angle: 63,8°
Solar Incidence Angle: 58° (meaning that the Sun was about 32° above the Local Horizon at the time the picture was taken)
Solar Longitude: 48,8° (Northern Spring - Southern Fall)
Credits: NASA/JPL-Caltech/University of Arizona
Additional process. and coloring: Lunar Explorer Italia


This picture (which is a crop taken from a NASA - Original Mars Reconnaissance Orbiter b/w and NON-Map Projected frame identified by the serial n. ESP_034209_1605) has been additionally processed, reduced in size, 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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