Astronomy Picture of the Day
April 7, 2015

Unnamed Complex Impact Crater in Isidis Planitia
Unnamed Complex Impact Crater in Isidis Planitia

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

In this nice VIS image, taken by the NASA - Mars Odyssey Orbiter on April, 15th, 2003, and during its 5.914th orbit around the Red Planet, we can see an Unnamed Complex Impact Crater (with well preserfved Terraces and an highly irregular Central Uplift) located in the Martian Region known as Isidis Planitia.

Isidis Planitia is a Plain located inside a giant Impact Basin, and centered at 12‹54Œ North Latitude and 87‹00Œ East Longitude; theis Plain is partly located in the Syrtis Major Quadrangle, and partly in the Amenthes Quadrangle of Mars. It is the third biggest (and obvious) Impact Structure found on the Red Planet, after the Hellas and the Argyre Basins. Isidis Planitia is about 1.500 Km (such as approx. 931,5 miles) in diameter.

Latitude (centered): 12,5231° North
Longitude (centered): 83,7448° East
Instrument: VIS

This image (which is a crop taken from an Original Mars Odyssey Orbiter falsely colored and Map-Projected frame published on the NASA - Planetary Photojournal with the ID n. PIA 19259) 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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