|
|
Titanian Crater
|
Caption NASA originale:"This image from Cassini's radar instrument shows an impact crater with a diameter of about 30 Km (19 miles) on the surface of Saturn's moon Titan. Cassini data have only revealed 3 definite impact craters on Titan so far, so each new discovery adds significantly to our body of knowledge. Impact craters are particularly important, as their shapes give scientists insight into the structure of the crust beneath Titan's surface. The difference in overall appearance between this crater, which has a central peak, and those without, such as Sinlap, indicates variations in the conditions of impact, thickness of the crust, or properties of the meteorite that made the crater. The dark floor indicates smooth or highly absorbing materials.
This image was acquired by the Cassini radar instrument in synthetic aperture mode during a Sept. 7, 2006, flyby of Titan.
This image is centered at 70° West Long.; 10° North Lat. and measures about 145 Km high by 180 Km wide (such as approx. 93 by 118 miles). The smallest details in this image are about 500 mt (approx. 550 yards) across".
|
|