Astronomy Answers: From the Astronomical Dictionary

Astronomy Answers
From the Astronomical Dictionary

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S/2002 N4

A moon of 60 km diameter at about 48,387,000 km from the planet Neptune. The gravity at its surface is about 0.0012 times as strong as on Earth. The moon goes once around its planet in about 25.6 years. The moon was discovered in 2002.