Hyperion

E28501

Hyperion is one of Saturn’s larger, irregularly shaped moons, known for its chaotic rotation and sponge-like, heavily cratered surface.

All labels observed (2)

Label Occurrences
Hyperion canonical 8
Hyperionides 1

How this entity was disambiguated

Statements (49)

Predicate Object
instanceOf irregular satellite ⓘ
moon of Saturn ⓘ
natural satellite ⓘ
albedo low ⓘ
axialTilt chaotic ⓘ
belongsToPlanetarySystem Saturn ⓘ
surface form: Saturnian system
catalogDesignation Saturn VII ⓘ
celestialBodyType irregularly shaped moon ⓘ
closestApproachByCassini_km ~500 ⓘ
color reddish-brown ⓘ
dimension_km 360 × 280 × 225 ⓘ
discoveredBy George Phillips Bond ⓘ
William Cranch Bond ⓘ
William Lassell ⓘ
discoveryDate 1848-09-16 ⓘ
discoverySite United States of America ⓘ
surface form: United States
escapeVelocity_m_per_s 24 ⓘ
hasChaoticRotation true ⓘ
hasHeavilyCrateredSurface true ⓘ
hasIrregularShape true ⓘ
mass_kg 5.6e18 ⓘ
meanDensity_g_per_cm3 0.54 ⓘ
meanPorosity_percent ~40 ⓘ
meanRadius_km 135 ⓘ
mythologicalAssociation Hyperion ⓘ
surface form: Titan Hyperion
namedAfter Hyperion ⓘ
surface form: Hyperion from Greek mythology
notableProperty chaotic tumbling motion ⓘ
low density compared to solid ice ⓘ
spongy, porous structure ⓘ
orbitalEccentricity 0.1042 ⓘ
orbitalInclination_deg 0.43 ⓘ
orbitalPeriod_days 21.276 ⓘ
orbitalResonanceRatio 4:3 with Titan ⓘ
orbits Saturn ⓘ
parentPlanet Saturn ⓘ
porosity very high ⓘ
resonanceWith Titan ⓘ
rotationState chaotic rotation ⓘ
satelliteOf Saturn ⓘ
semiMajorAxis_km 1481000 ⓘ
shape highly irregular ⓘ
surfaceAppearance sponge-like ⓘ
surfaceComposition dark organic-rich material ⓘ
water ice ⓘ
surfaceFeature heavily cratered terrain ⓘ
surfaceGravity_m_per_s2 0.017 ⓘ
synchronousRotation false ⓘ
visitedBy Cassini–Huygens ⓘ
Voyager 2 ⓘ

How these facts were elicited

Referenced by (9)

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

Iapetus → sibling → Hyperion ⓘ
Helios → epithet → Hyperion ⓘ
this entity surface form: Hyperionides
Saturn → hasMajorMoon → Hyperion ⓘ
Cassini–Huygens → studiedMoon → Hyperion ⓘ
Shopgirl → publisher → Hyperion ⓘ
Brain Droppings → publisher → Hyperion ⓘ
Phoebe → siblingOf → Hyperion ⓘ
Saturn VII → alsoKnownAs → Hyperion ⓘ
William Lassell → discovered → Hyperion ⓘ