Click to enlargeSaturn's Rings Photo

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The contrast is sharp between the outer portion of the A ring edge and the ring's main body. One explanation for this is that the outer A ring region contains smaller particles (around 1 centimeter or 0.4 inches in radius) than the main rings, allowing more opportunities for light scattering before it scatters toward the camera.

Ringlets in the Encke Gap and flanking the bright F ring core are clearly visible here.

This view looks toward the lit side of the rings from about 4 degrees below the ringplane.

The image was taken with the Cassini spacecraft narrow-angle camera using a spectral filter sensitive to wavelengths of infrared light centered at 752 nanometers on Nov. 7, 2006. Cassini was then at a distance of approximately 1.1 million kilometers (700,000 miles) from Saturn and at a Sun-Saturn-spacecraft, or phase, angle of 140 degrees. Image scale on the NASA/JPL/Space Science Institutesky at the distance of Saturn is 6 kilometers (4 miles) per pixel.

Addition Date: December 12, 2006
Image Credit: NASA/JPL/Space Science Institute


PIA08834
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