Fig. 2
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Effect of ice on the point-spread function (PSF). Left panel: Cassini / NAC image of the star Maia (Pleiades) taken in the broadband CL1/GRN filter (λeff = 568 nm) before the contamination event. Middle panel: bright star α PsA in the same filter, after the contamination event. Right panel: colour image of Maia in filter combinations UV2/UV3 (λeff = 316 nm; blue), CL1/GRN (green), and IR2/IR1 (λeff = 827 nm; red), showing the chromaticity of molecular scattering. Figure credit: adapted from Haemmerle & Gerhard (2006).
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