Astronomy Picture of the Day
June 5, 2014

Unnamed Crater with Delta Deposit
Unnamed Crater with Delta Deposit

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

In this VIS image, taken by the NASA - Mars Odyssey Orbiter on March, 16th, 2014, and during its 54.354th orbit around the Red Planet, we can see a so-called "Delta Deposit" thatg sits on the Floor of an Unnamed (and quite ancient and heavily degraded) Impact Crater located in the Northern Hemisphere's Martian Region known as Arabia Terra.

As you may want to notice, the Channel that created the Delta, as a matter of fact, neatly dissects (---> cuts through) the very Northernost Portion of the Crater Rim. A few (and relatively small and recent, always Geologically speaking) Impact Craters dot the Floor of the large Unnamed Impact Crater that hosts the Delta Deposit. Given the extremely peculiar configuration of this Delta Deposit, we have to say and underline that the cause (or causes) which is (are) at the origin of such an unusually-looking Surface Feature, is (are), so far, still unknown.

Latitude (centered): 31,1307° North
Longitude (centered): 12,3785° East
Instrument: VIS

This image (which is a crop taken from an Original Mars Odyssey Orbiter b/w and NON Map-Projected frame published on the NASA - Planetary Photojournal with the ID n. PIA 18265) has been additionally processed, magnified to aid the visibility of the details, contrast enhanced and sharpened, 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 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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