Io (Jupiter I) is the innermost of the four Galilean moons of the planet Jupiter. It is the fourth-largest moon, has the highest density of all the moons, and has the least amount of water of any known astronomical object in the Solar System. It was discovered in 1610 and was named after the mythological character Io, a priestess of Hera who became one of Zeus' lovers. (Source: Wikipedia)
Technical details:
Red: WFC3/UVIS F631N
Green: WFC3/UVIS F502N
Blue: WFC3/UVIS 395N
North is 50.56° clockwise from up.
Data from the following proposal comprises this image:
Hubble 2020: Outer Planet Atmospheres Legacy (OPAL) Program
Credit: NASA/ESA
Processing: Judy Schmidt
Image Date: April 3, 2017
Release Date: November 3, 2018
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