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Color Rhea
Here's a false-color image of the "wispy hemisphere" of Rhea that I made from infrared, green-light, ultraviolet and clear-filter images taken during the Cassini flyby on Tuesday:
It appears that the bluer, brighter "wisps" involve regions of ice cliffs, much as they do on Dione.
(A true-color, visible-light picture of Rhea would be almost completely gray; this compression of the spectrum exaggerates small differences in redness/blueness.)
It appears that the bluer, brighter "wisps" involve regions of ice cliffs, much as they do on Dione.
(A true-color, visible-light picture of Rhea would be almost completely gray; this compression of the spectrum exaggerates small differences in redness/blueness.)