Astronomy Answers: From the Astronomical Dictionary

Astronomy Answers
From the Astronomical Dictionary


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Larissa

A moon of 194 km diameter at about 73,550 km from the planet Neptune. The gravity at its surface is about 0.0035 times as strong as on Earth. The moon goes once around its planet in about 13.3 hours. The moon was discovered in 1989. Also called NVII (Neptune seven). Its provisional designation was S/1989 N2.