Astronomy Picture of the Day
January 12, 2014

Lyot's Dunefield
Lyot's Dunefield

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 November, 21st, 2013, and during its 52.955th orbit around the Red Planet, we can see a large Dunefield that is located on the Floor of the Impact Crater known as Lyot. Lyot Crater is a large Impact Crater located in the in the Vastitas Borealis Region, at approx. 50,8° North Latitude and 330,7° West Longitude, within the Ismenius Lacus Quadrangle of Mars. It is about 236 Km (such as approx. 146,556 miles) in diameter and it was so named after Dr Bernard Lyot, a French Astronomer (who was born in Paris on February, 27, 1897, and died in Cairo - Egypt - on April, 2, 1952).

Lyot Crater stands out on the flat (and, always relatively speaking, Impact Craters' free) Plains of Vastitas Borealis and, as a matter of fact, is the deepest point that can be found on the Northern Hemisphere of the Red Planet,

Latitude (centered): 50,4110° North
Longitude (centered): 28,5003° 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 17856) has been additionally processed, magnified, contrast enhanced, 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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