Thalassa

Also known as Neptune IV, S/1989 N 5

moon of Neptune

AI overview

Thalassa is a small moon that orbits Neptune, the eighth and most distant planet in our solar system. It was discovered in 1989 and represents one of many moons that help scientists understand the composition and structure of the outer solar system.

AI-generated from the Wikipedia summary — may contain errors.

Wikidata facts

Radius: 41
Mass: 370
Orbital period: 0.31148444
Image: Neptune Trio.jpg

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Commons category: Thalassa (moon)
provisional designation: S/1989 N 5
time of discovery or invention: 1989-09-18
Commons gallery: Thalassa
albedo: 0.09
apparent magnitude: 23.3
semi-major axis of an orbit: 50075
orbital eccentricity: 0.00176
orbital inclination: 0.21
name: Neptú IV
temperature: 51

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Article

Thalassa /θəˈlæsə/, also known as Neptune IV, is the second-innermost satellite of Neptune. Thalassa was named after sea goddess Thalassa, a daughter of Aether and Hemera from Greek mythology. "Thalassa" is also the Greek word for "sea".

Discovery