Saturn's Terminator

Caption NASA originale:"Saturn's clouds billow and swirl in the turbulent zones of shear between Eastward- and Westward-flowing jets. This view looks toward the Terminator on Saturn, where night gives way to day.
The image was taken using a spectral filter sensitive to wavelengths of infrared light centered at 728 nanometers.
The image was obtained with the Cassini spacecraft wide-angle camera on Aug. 16, 2006 at a distance of approx. 338.000 Km (about 210.000 miles) from Saturn and at a Sun-Saturn-spacecraft, or phase, angle of 67°.

Image scale is roughly 17 Km (about 10 miles) per pixel".