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The description of the word you requested from the astronomical dictionary is given below.
A moon of 3 km diameter at about 22,865,000 km from the planet Jupiter. The gravity at its surface is about 0.0001 times as strong as on Earth. The moon goes once around its planet in about 706.2 days. The moon was discovered in 2001. Also called JXXXII (Jupiter thirty-two). Its provisional designation was S/2001 J4.