Bruce Murray Space Image Library
Io over Jupiter's clouds
The scene is composed of a 12-frames mosaic made of 28 individual images (12 orange filters and 16 violet filters). More classic orientation here: tinyurl.com/hkbqo36. This image is a small crop of a global map Voyager 1 captured on March 3 1979. The data-set contains another captivating scene popularised by Micheal Benson of Europa over the Great Red Spot, yet to be seen in colors as far as I know. https://www.flickr.com/photos/alex-is-solaris/28632019403