Astronomy Picture of the Day
April 29, 2014

Features of the Granicus Valles Channels' System
Features of the Granicus Valles Channels' System

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 February, 25th, 2014, and during its 54.125th orbit around the Red Planet, we can see a small portion of a Granicus Valles, a large and long Channels' System located in the Amenthes Quadrangle of Mars, at about 30° North Latitude and 229° West Longitude.


Granicus Vallis (which is the main - largest and longest - Channel of the whole System) is approx. 750 Km (such as about 465,75 miles) long and it was so named after an ancient Turkish river; furthermore, Granicus Vallis has been identified and classified, by Planetary Scientists, as a gigantic Outflow Channel and it runs (jointly with the other - smaller - Channels - i.e.: Tributaries - that make the System) to the West of the Elysium Volcanic Complex.


Latitude (centered): 27,5359° North
Longitude (centered): 133,9890° 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 18221) has been additionally processed, magnified to aid the visibility of the details, 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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