Astronomy Answers: From the Astronomical Dictionary

# Astronomy AnswersFrom the Astronomical Dictionary

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The description of the word you requested from the astronomical dictionary is given below.

Nereid

A moon of 340 km diameter at about 5,513,400 km from the planet Neptune. The gravity at its surface is about 0.0073 times as strong as on Earth. The moon goes once around its planet in about 360.1 days. The moon was discovered in 1949. Also called NII (Neptune two).