Astronomy Answers: From the Astronomical Dictionary

Astronomy Answers
From the Astronomical Dictionary


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S/2003 J2

A moon of 2 km diameter at about 29,541,000 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 2.8 years. The moon was discovered in 2003.