Image: Wikimedia Commons

Europa

Galilean moon of Jupiter

Also known as Jupiter II · Europa (moon)

Orbits: Jupiter
Mass: 47.986 yottagram
1
Sources
1.ssd.jpl.nasa.gov/?sat_phys_parRetrieved 2020-09-05
View statement on Wikidata ↗
Radius: 1,560.8 km
Orbital period: 3.5512 days
1
Sources
1.solarsystem.nasa.gov/planets/profile.cfm?Object=Jup_Europa
View statement on Wikidata ↗
Semi-major axis: 671,100 km
Discovered by: Galileo Galilei
, Simon Marius
Discovered: January 7, 1610

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

Europa 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.

Overview

All data

71 statements · 18% with external sources · numbers in brackets are citations

Named after: Europa
Site of astronomical discovery: University of Padua
Eccentricity: 0.009
Albedo: 0.64
Apparent magnitude: 5.29 astronomical filter: V band
Inclination: 0.47 degree relative to: Jupiter
1.791 degree relative to: ecliptic
Density: 3.013 g/cm³
1
Sources
1.ssd.jpl.nasa.gov/?sat_phys_par
View statement on Wikidata ↗
Surface gravity: 1.314 metre per square second
Temperature: 50 K sourcing circumstances: minimum
102 K sourcing circumstances: mean
125 K sourcing circumstances: maximum
1
Sources
1.archive.org/details/encyclopediaofso0000unse_m0r6/page/432
View statement on Wikidata ↗
Has characteristic: Q15141736 nature of statement: possibly
Has use: colonization of Europa nature of statement: expected
Members / parts: Q7885366
Named by: Simon Marius
Different from: Europe
Geography of topic: Q3977870
Part of: Galilean moons
Apoapsis: 676,938 km
Periapsis: 664,862 km

On other databases

34 identifiers linking Europa across the web's reference databases

Data quality

statements

18%

externally sourced

Source last edited October 8, 2026. AIDB refreshes this page daily.

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AIDB. (2026). Europa (Q3143). Retrieved from https://aidb.si/e/europa-Q3143