= S/2021 J 4
{wiki=S/2021_J_4}
S/2021 J 4 is a designation for a small moon (or satellite) of Jupiter. It was discovered in 2021 and is part of the irregular moons of Jupiter. The designation follows a standard naming convention for astronomical bodies. Jupiter has a large number of moons, and many of them have been discovered relatively recently using advanced observational techniques. These moons often have irregular or eccentric orbits and can vary significantly in size and composition.
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