Astronomy Picture of the Day
November 23, 2013

Features of Echus Chasma (EDM)
Features of Echus Chasma (EDM)

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

In this Extra Detail Magnification (or "EDM" for short) - taken from an Original NASA - Mars Reconnaissance Orbiter's False Colors and NON-Map Projected sub-frame -, we can see, with a really great detail, a so-called "Intersection Area" existing between two Fractures (or, perhaps, Fissures and/or Water or Lava-carved narrow Channels) which are both located on the Floor of Echus Chasma (an Equatorial Chasma found in the Lunae Planum High Plateau Region of Mars, slightly to the North of the gigantic Valles Marineris Canyon System, and approx. 100 Km long and 10 Km wide).

Echus Chasma contains several Valleys which range - as far as their depth is concerned - from about 1 to 4 Km, and it is now considered, by Planetary Scientists, to be the Water Source Region that allowed the formation and then the (relevant) water-supply of the Kasei Valles Outflow Channel: a large Valley that extends for thousands of kilometers towards the North of the Red Planet.

Mars Local Time: 14:36 (Early Afternoon)
Coord. (centered): 0,377° North Lat. and 279,483° East Long.
Spacecraft altitude: 269,1 Km (such as about 161,111 miles)
Original image scale range: 53,8 cm/pixel (with 2 x 2 binningso objects ~ 1 mt and 62 cm across are resolved
Map projected scale: 50 cm/pixel
Emission Angle: 7,7°
Phase Angle: 47,6°
Solar Incidence Angle: 40° (meaning that the Sun was about 50° above the Local Horizon at the time the picture was taken)
Solar Longitude: 27,0° (Northern Spring - Southern Fall)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer Italia

This picture (which is a crop taken from a NASA - Original Mars Reconnaissance Orbiter False Colors and NON-Map Projected sub-frame identified by the serial n. ESP_033591_1805-1) has been additionally processed, magnified, contrast enhanced, Gamma corrected, and then re-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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