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Rhea, from about 239.000 Km
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Original caption:"Like the rest of Rhea's surface, the Southern Polar Region of this Saturn moon has been extensively re-worked by cratering over the eons. This close-up shows that most sizeable craters have smaller, younger impact sites within them. Near the left lies an intriguing gash (---> taglio lungo e profondo, ivi sinonimo di "chasm" o "cleft").
The largest well-defined crater visible here is an oval-shaped impact toward the upper right. The crater is 115 by 91 Km (such as 71 by 57 miles) in size. Cassini acquired this view during a distant flyby of Rhea on July 14, 2005.
The image was taken in visible light with the Cassini spacecraft narrow-angle camera at a distance of approx. 239.000 Km (such as 149.000 miles) from Rhea and at a Sun-Rhea-spacecraft angle of 56°. The image was obtained using a filter sensitive to wavelengths of infrared light centered at 930 nnmts. The image scale is about 1 Km per pixel".
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(Dettagli)
