Astronomy Picture of the Day
March 21, 2015

Windstreaks
Windstreaks

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

In this interesting VIS image, taken by the NASA - Mars Odyssey Orbiter on April, 5th, 2003, and during its 5.799th orbit around the Red Planet, we can see a set of three (3) long Windstreaks (---> which, as you know - and as well as we already wrote in the past on these pages -, are one of the most common Aeolian Surface Features of Mars) that indicates the direction of the Dominant Winds' blowing over this specific area of the Planet.


The two Main Windstreaks visible here, obviously come from the central Unnamed Imapct Crater and its immediate surroundings; but the third one (look at the right - Dx - side of the picture) must have been caused by the presence of a truly small Surface Relief which, unfortunately, is not visible in the frame (or, maybe, a Surface Relief that could have been erased away - destroyed - by the action of the Dominant - and extremely powerful - Winds themselves during a not too distant past of the Martian History).


Latitude (centered): 14,0751° North
Longitude (centered): 160,3970° East
Instrument: VIS


This image (which is a crop taken out of an Original Mars Odyssey Orbiter falsely colored and Map-Projected frame published on the NASA - Planetary Photojournal with the ID n. PIA 19250) 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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