Enceladus

E148113

Enceladus is an icy moon of Saturn known for its spectacular geysers that eject water vapor and ice, suggesting a subsurface ocean that may harbor conditions suitable for life.

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All labels observed (2)

Label Occurrences
Enceladus canonical 6
Enceladus (giant in Greek mythology) 1

Statements (50)

Predicate Object
instanceOf icy moon
moon of Saturn
natural satellite
albedo ~0.99
astrobiologicalInterest possible conditions suitable for life
atmosphericComponent carbon dioxide
methane
molecular hydrogen
water vapor
composition silicate rock (core)
water ice
consideredPotentiallyHabitable true
contributesTo E ring of Saturn
diameter 504.2 km
discoveredBy William Herschel
discoveryDate 1789-08-28
emits ice grains
organic compounds
salts
water vapor plumes
escapeVelocity 0.239 km/s
exploredBy Cassini–Huygens
Voyager 1
Voyager 2
flybyCountByCassini 23
geologicalActivity cryovolcanism
tectonics
hasAtmosphereType tenuous atmosphere
hasFeature cryovolcanic geysers
south polar terrain
tiger stripe fractures
hasSubsurfaceOcean true
heatSource tidal heating
mass 1.08×10^20 kg
meanDensity 1.61 g/cm³
meanRadius 252.1 km
memberOf Saturnian system
namedAfter Enceladus self-linksurface differs
surface form: Enceladus (giant in Greek mythology)
oceanLocation global subsurface ocean beneath ice shell
orbitalEccentricity 0.0047
orbitalInclination 0.009° to Saturn’s equator
orbitalPeriod 1.370218 day
orbits Saturn
rotationPeriod 1.370218 day
rotationState synchronous rotation
semiMajorAxis 237,948 km
surfaceFeatureNameTheme characters and places from The Arabian Nights
surfaceGravity 0.113 m/s²
surfaceTemperature ~33 K (night)
~75 K (equatorial day)

Referenced by (7)

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

Saturn hasMajorMoon Enceladus
Cassini–Huygens target Enceladus
Cassini–Huygens studiedMoon Enceladus
Giants notableGiant Enceladus
subject surface form: Giants (Greek mythology)
Dione hasTidalInteractionWith Enceladus
William Herschel discovered Enceladus
Enceladus namedAfter Enceladus self-linksurface differs
this entity surface form: Enceladus (giant in Greek mythology)