Enceladus at high phase, casting a shadow onto the E ring
Two narrow-angle clear filter frames were stacked and colorized based upon a red and blue frame covering only Enceladus' south polar region and plume. The overall plume color was used to colorize the rest of the clear filter frame and the saturnlit south polar region was used as color basis for the entire disc. The result was then contrast-enhanced to show Enceladus' faint shadow on the E-ring itself.
Even though both the plumes and Enceladus are basically a pure white color, Saturn's overall color is "imprinted" here on the moon, while the plumes are seen because they forward-scatter direct sunlight (this is a very high phase view so not even Enceladus' daylit crescent is visible).
Distance: 616 000 km
Phase angle: 174 deg
Copyright holder: Gordan Ugarkovic
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Contact us to request publication permission from the copyright holder. Original image data dated on or about December 25, 2009