NASA NTRS · 19800056963
Saturn's E ring revisited
Abstract
Images of the E ring of Saturn obtained by the image processing of photographs of the 1966 edge-on presentation of the planet's ring plane are presented. Two methods of image enhancement were used: scanning with an image quantizer operated in the derivative mode to enhance contrast and computerized subtraction of a circularly symmetric image of the overexposed Saturn disk. Further photographic and CCD observation confirming the existence of the ring extending to twice the diameter of the A ring, which was not detected by the Pioneer 11 imaging photopolarimeter, is indicated.
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Feibelman, W. A., Klinglesmith, D. A., III. 1980-07-11. Saturn's E ring revisited. https://ntrs.nasa.gov/citations/19800056963
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