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Rhea and the Rings
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Caption NASA originale:"Saturn's brightly sunlit moon Rhea commands the foreground in this image from Cassini; the Gas Giant Planet's Rings are discernible in the background. The spacecraft was just above the Ringplane when it acquired this image, and thus captured the darkened appearance of the dense B-Ring when viewed with sunlight filtered through the Rings. From this perspective, bright areas in the Rings are regions of low density, containing very small particles that effectively scatter light toward Cassini.
North on Rhea is up and rotated about 25° to the left. This view shows principally the anti-Saturn hemisphere on Rhea. It is very clear that the right side of Rhea is highly overexposed.
The image was taken in visible light with the Cassini spacecraft narrow-angle camera on Feb. 18, 2005, at a distance of approx. 540.000 Km (such as approx 340.000 miles) from Rhea and at a Sun-Rhea-spacecraft, or phase, angle of 110°. The image scale is 3 Km (2 miles) per pixel".
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