Damn I never had that one! 
JB

JB
Got an image?
Jupiter 1880 by Étienne Léopold Trouvelot
edit to add: It's clear from the painting that Trouvelot observed two moons and their shadows but I wonder if he also observed a Shoemaker-Levy 9 like impact; that is certainly the first thought I had about that band of dark circles.
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