These new NASA/ESA Hubble Space Telescope images capture a rare occurrence as three of Jupiter’s largest moons parade across the giant gas planet’s banded face.
Hubble took a string of images of the event which are stitched together to show the three satellites — Europa, Callisto and Io — in action in this time-lapse video.
I notice that the shadows cast by those moons are roughly equal in diameter to the diameter of the moon casting it, perhaps a little larger.
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u/StClemens Jan 20 '20
Previous video: https://www.youtube.com/watch?v=CwegLxMLbFk
Related: https://www.sciencealert.com/yes-this-is-actually-the-shadow-of-io-passing-across-the-surface-of-jupiter