Astronomy Picture of the Day
March 19, 2015

Features of Becquerel Crater (EDM)
Features of Becquerel Crater (EDM)

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

In this Extra Detail Magnification (or "EDM", for short") of a truly suggestive VIS image, taken by the NASA - Mars Odyssey Orbiter on March, 29th, 2003, and during its 5.705th orbit around the Red Planet, we can see, as we wrote in yesterday's APOD, a small portion of the highly irregular and heavily cratererd Floor of the large Impact Crater known as Becquerel Crater.


Becquerel Crater is an approx. 167 Km-diameter (such as about 103,707 miles) Impact Crater, centered at 22,1° North Latitude and 352,0° East Longitude, in the old and dusty Martian Region known as Arabia Terra, which is located in the Oxia Palus Quadrangle. Becquerel Crater was so named after Dr Antoine H. Becquerel, a French PhysicistNobel Laureate, and co-discoverer of radioactivity after he worked in this field of Science along with Marie Sk³odowska-Curie and Pierre Curie.


Here, near the center and lower Left (Sx) quadrant of the frame, we can very well notice the presence of a Region covered by extremely deep and really well defined Yardangs (---> a very common Martian Aeolian Surface Feature consisting of - relatively - fragile Rocky Surfaces sculpted by the Wind). The gray Areas that are visible in this EDM (just like in yesterday's Contextual Frame) are (we believe, as IPF) covered by very fine (and possibly Oxidized) Dust Particles and - perhaps - Volcanic Ashes.


Latitude (centered): 21,6121° North
Longitude (centered): 352,3560° East
Instrument: VIS


This image (which is a crop of an Original Mars Odyssey Orbiter falsely colored and Map-Projected frame published on the NASA - Planetary Photojournal with the ID n. PIA 19239) has been additionally processed, magnified to aid the visibility of the details, contrast enhanced and sharpened, Gamma corrected and then re-colorized in Absolute Natural Colors (such as the colors that a normal human eye would actually perceive if someone were onboard the NASA - Mars Odyssey 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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