Astronomy Picture of the Day
November 18, 2015

Dantu Crater (CTX Frame)
Dantu Crater (CTX Frame)

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

This extremely interesting Contextual Image (or "CTX Frame", for short) of the Dwarf Planet 1-Ceres, taken by the NASA - Dawn Spacecraft on October, 3, 2015, shows us Dantu Crater, partly seen here at left (Sx), and reveals Surface Structures hinting (---> suggesting) at the occurrence of Tectonic Processes that, in a very remote past, formed and defined the Dwarf Planet's Surface.


As you can see, some sort of semi-Linear Surface Structures (---> in fact, they are small and relatively shallow cracks) are spread almost all over the Crater's Floor while, on the other hand, outside the Crater's Rim, the presence of these Linear and semi-Structures continues in the form of Scarps (---> Linear and semi-Linear, Cliff-like Slopes) and Ridges. Dantu Crater's diameter is roughly 78 miles (such as about 125,528 Km). Just as usual for 1-Ceres, a number of White Spots (some truly well defined and clear) can be easily seen inside, on the steep Inner and Outer Rim, and also outside Dantu Crater.


The original photo was taken from an altitude of approx. 915 miles (such as about 1472,5461 Km) from the Surface, with a resolution of roughly 450 feet (such as about 137,16 meters) per pixel. The image shows us an area of 1-Ceres which is located (---> centered) at 31° North Latitude and 149° East Longitude


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 20122 - Dawn HAMO Image 60) 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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