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Europa

Also known as Jupiter II, Europa (moon)

Galilean moon of Jupiter

AI overview

Europa is one of Jupiter's four largest moons, discovered by Galileo in the early 1600s. It matters because scientists believe it has a subsurface ocean of liquid water beneath its icy crust, making it a promising place to search for extraterrestrial life.

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Wikidata facts

Radius: 1560.8
Mass: 47.986
Orbital period: 3.551181
Image: Europa-moon.jpg

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Commons category: Europa (moon)
time of discovery or invention: 1610-01-08
Commons gallery: Europa (moon)
orbital eccentricity: 0.009
albedo: 0.64
semi-major axis of an orbit: 671100
apparent magnitude: 5.29
orbital inclination: 1.791
density: 3.013
surface gravity: 1.314
temperature: 125
apoapsis: 676938
periapsis: 664862

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Article

Apparent magnitude 5.29 (opposition) Atmosphere Surface pressure 0.1 μPa (10 bar)

Europa (/jʊˈroʊpə/ ) is the smallest and least massive of Jupiter's four Galilean moons. It is observable from Earth with common binoculars and is a planetary-mass moon, slightly smaller and less massive than Earth's Moon. Europa is an icy moon, and, of the three icy Galilean moons, the closest orbiting Jupiter. As a result, it exhibits a relatively young surface shaped by tidal heating.