Galilean moons

E31124
Jovian satellite system natural satellite group

The Galilean moons are the four largest satellites of Jupiter—Io, Europa, Ganymede, and Callisto—known for their diverse geologies and significance in the study of planetary systems and potential extraterrestrial habitability.

Jump to: Surface forms Statements Referenced by

Observed surface forms (2)

Surface form Occurrences
Callisto 1
Ganymede 1

Statements (48)

Predicate Object
instanceOf Jovian satellite system ⓘ
natural satellite group ⓘ
areFirstDiscoveredMoonsOf another planet ⓘ
areImportantFor comparative planetology ⓘ
studying tidal heating ⓘ
testing theories of orbital resonance ⓘ
understanding icy moons ⓘ
areIn Jupiter system ⓘ
outer Solar System ⓘ
areLargestGroupIn Jovian satellite system ⓘ
areLargestMoonsOf Jupiter ⓘ
areLockedIn Laplace resonance ⓘ
areTargetsOf Europa Clipper mission ⓘ
JUICE mission ⓘ
future astrobiology missions ⓘ
areVisibleWith binoculars ⓘ
small telescope ⓘ
belongTo Solar System ⓘ
discoveredBy Galileo Galilei ⓘ
discoveryDate 1610 ⓘ
exhibit diverse geology ⓘ
strong tidal interactions ⓘ
haveBeenVisitedBy Galileo spacecraft ⓘ
Juno spacecraft ⓘ
New Horizons ⓘ
Pioneer 10 ⓘ
Pioneer 11 ⓘ
Voyager 1 ⓘ
Voyager 2 ⓘ
haveCollectiveAlternativeName Medicean stars ⓘ
haveInfluenced acceptance of heliocentric model ⓘ
haveMeanRadiusOrder Io < Europa < Ganymede < Callisto ⓘ
haveOrbitalPlane close to Jupiter equatorial plane ⓘ
haveSignificanceIn celestial mechanics ⓘ
planetary science ⓘ
search for extraterrestrial life ⓘ
study of planetary formation ⓘ
member Callisto ⓘ
Europa ⓘ
Ganymede ⓘ
Io ⓘ
namedAfter Galileo Galilei ⓘ
numberOfMembers 4 ⓘ
orbits Jupiter ⓘ
resonanceMembers Europa ⓘ
Ganymede ⓘ
Io ⓘ
wereFirstObservedWith early refracting telescope ⓘ

Referenced by (5)

Full triples — surface form annotated when it differs from this entity's canonical label.

Galileo Galilei → discovered → Galilean moons ⓘ
Jupiter → hasMajorMoon → Galilean moons ⓘ
this entity surface form: Ganymede
Jupiter → hasMajorMoon → Galilean moons ⓘ
this entity surface form: Callisto
Jupiter → hasSatelliteGroup → Galilean moons ⓘ
Sidereus Nuncius → subject → Galilean moons ⓘ