Astronomy Answers: From the Astronomical Dictionary

Astronomy Answers
From the Astronomical Dictionary


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S/2003 J16

A moon of 2 km diameter at about 20,963,000 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 619.9 days. The moon was discovered in 2003.