Astronomy Picture of the Day
March 22, 2015

Features of Trouvelot Crater
Features of Trouvelot Crater

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

In this frame, which is a crop obtained from a VIS image taken by the NASA - Mars Odyssey Orbiter on April, 8th, 2003, and during its 5.830th orbit around the Red Planet, we can see a very small portion of the Floor of the large (approx. 154,7 Km - such as about 96,086 miles - in diameter) Impact Crater known as Trouvelot Crater, which is located in the Oxia Palus Quadrangle of Mars and centered at 16,2° North Latitude and 13,1° West Longitude.

The dark gray-colored and drop-like shaped Surface Features visible here (in the central part, from the top to the bottom of the picture), are small (and probably migrating) Sand Dunes, while the white Feature visible on the lower right (Dx) side of the frame is a relatively small Surface Relief (---> a "Mound"), possibly made of soft and fragile Rocky Material (or even compacted Mud and Sand) which has already been deeply sculpted by the action of powerful Winds blowing inside the Crater's Floor.

Latitude (centered): 15,5535° North
Longitude (centered): 346,5840° 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 19251) 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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