Astronomy Answers: From the Astronomical Dictionary

Astronomy Answers
From the Astronomical Dictionary

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A moon of 8 km diameter at about 24,103,000 km from the planet Jupiter. The gravity at its surface is about 0.0003 times as strong as on Earth. The moon goes once around its planet in about 764.3 days. The moon was discovered in 1999. Also called JXVII (Jupiter seventeen). Its provisional designation was S/1999 J1.