Astronomy Picture of the Day
December 12, 2015

Features of Tenuis Cavus
Features of Tenuis Cavus

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

In this suggestive VIS image, taken by the NASA - Mars Odyssey Orbiter on October, 7th, 2015, and during its 61.283rd orbit around the Red Planet, we can see a (relatively small) portion of the Northern Region known as Tenuis Cavus as well as a "slice" of the highly Layered Scarp that is called Tenuis Rupes.

Tenuis Cavus is a Region located within the North Polar Cap of Mars, where the underlying Surface is visible. As a matter of fact, Ice and Frost can be seen in the top part of the image (North). A few Impact Craters (some of them with small Pedestals) and a number of Barchan and Knob-shaped Sand Dunes, on the other hand, are well visible on the Ice-free - and orangish-colored - Surface (South).

Latitude (centered): 84,77190° North
Longitude (centered): 2,80914° East
Instrument: VIS

This image (which is an Original Mars Odyssey Orbiter b/w and Map Projected frame published on the NASA - Planetary Photojournal with the ID n. PIA 20112) has been additionally processed, magnified to aid the visibility of the details, extra-contrast enhanced and sharpened, Gamma corrected and then 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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