Astronomy Answers: From the Astronomical Dictionary

Astronomy Answers
From the Astronomical Dictionary

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S/2002 N3

A moon of 48 km diameter at about 23,571,000 km from the planet Neptune. The gravity at its surface is about 0.0011 times as strong as on Earth. The moon goes once around its planet in about 8.7 years. The moon was discovered in 2002.