Astronomy Picture of the Day
April 11, 2016

Ninsar Crater (EDM)
Ninsar Crater (EDM)

Credits: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA and Dr Paolo C. Fienga for the additional process. and color.

This is an Extra Detail Magnification (or "EDM", for short) obtained from yesterday's extremely clear Contextual Image (or "CTX Frame", for short) of the Dwarf Planet 1-Ceres, taken by the NASA - Dawn Spacecraft on February, 12th, 2016, that showed us a large portion of the really ancient and unusually-looking Cerean Impact Crater known as Ninsar Crater, which is located in the Northern Hemisphere of this fascinating Dwarf-Planet. Ninsar Crater was so named after a Sumerian Goddess of plants and vegetation.


In this EDM we can see a very smooth (South-Eastern facing) portion of the Inner Slopes of the Crater (that also show White "Striations" of some kind) while, everywhere else, said Slopes look quite uneven. The cause of such a Geological Phenomenon that affected only one (small) portion of Ninsar Crater is still a mistery. 


The Original View was centered at approximately 30° North Latitude and 265° East Longitude. The NASA - Dawn Spacecraft captured the scene during its Low-Altitude Mapping Orbit (or "LAMO", for short), from an approx. altitude of 240 miles (such as about 386,2416 Km) above the Surface of 1-Ceres. The Image Resolution is roughly 120 feet (i.e. about 36,576 meters) per pixel (---> Picture Element).


This image (which is a crop obtained from an Original NASA - Dawn Spacecraft's b/w and NON Map-Projected frame published on the NASA - Planetary Photojournal with the ID n. PIA 20558 - DAWN LAMO Image n. 63) has been additionally processed, extra-magnified to aid the visibility of the details, contrast enhanced and sharpened, Gamma corrected and then colorized (according to an educated guess carried out by Dr Paolo C. Fienga-LXTT-IPF) in Absolute Natural Colors (such as the colors that a normal human eye would actually perceive if someone were onboard the NASA - Dawn Spacecraft and then looked ahead, towards the Surface of 1-Ceres), by using an original technique created - and, in time, dramatically improved - by the Lunar Explorer Italia Team.



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