Ariel

E117407
icy moon moon of Uranus natural satellite

Ariel is one of Uranus's major icy moons, known for its relatively bright surface and complex system of canyons and fault valleys.

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All labels observed (1)

Label Occurrences
Ariel canonical 3

Statements (56)

Predicate Object
instanceOf icy moon ⓘ
moon of Uranus ⓘ
natural satellite ⓘ
albedoGeometric 0.35 ⓘ
averageOrbitalDistanceFromUranus_km 190900 ⓘ
axialTilt_deg 0.0 ⓘ
belongsToPlanetarySystem Uranian system ⓘ
bondAlbedo 0.23 ⓘ
celestialBodyType satellite ⓘ
closestApproachDistance_km 127000 ⓘ
cryovolcanismEvidence probable ⓘ
diameter_km 1158 ⓘ
discoveredBy William Lassell ⓘ
discoveryDate 1851-10-24 ⓘ
discoveryYear 1851 ⓘ
equatorialRadius_km 579.0 ⓘ
escapeVelocity_km_per_s 0.56 ⓘ
flybyDate 1986-01-24 ⓘ
geologicalActivity evidence of past endogenic resurfacing ⓘ
hemisphereCoverageByImaging about 35 percent ⓘ
imagedBy Voyager 2 imaging system ⓘ
locatedIn Uranus ⓘ
surface form: Uranus system

outer Solar System ⓘ
majorUranianMoon true ⓘ
mass_kg 1.353e21 ⓘ
massRelativeToMoon 0.018 ⓘ
meanDensity_g_per_cm3 1.59 ⓘ
meanRadius_km 578.9 ⓘ
namedAfter Ariel (character in Alexander Pope's The Rape of the Lock) ⓘ
Ariel ⓘ
surface form: Ariel (spirit in Shakespeare's The Tempest)
orbitalEccentricity 0.0012 ⓘ
orbitalInclination_deg 0.041 ⓘ
orbitalPeriod_days 2.520 ⓘ
orbits Uranus ⓘ
parentPlanetMassInfluence tidally locked to Uranus ⓘ
partOf Solar System ⓘ
rankBySizeInUranianSystem fourth-largest moon of Uranus ⓘ
relativeBrightnessAmongUranianMoons one of the brightest ⓘ
rotationPeriod_days 2.520 ⓘ
rotationState synchronous rotation ⓘ
semiMajorAxis_km 190900 ⓘ
spectralFeature strong water-ice absorption bands ⓘ
surfaceColor relatively bright ⓘ
surfaceComposition carbon dioxide ice ⓘ
rocky material ⓘ
water ice ⓘ
surfaceFeature canyons ⓘ
chasmata ⓘ
fault valleys ⓘ
grabens ⓘ
impact craters ⓘ
smooth plains ⓘ
surfaceGravity_m_per_s2 0.27 ⓘ
surfaceTemperature_K_mean 60 ⓘ
surfaceTemperature_K_min 60 ⓘ
visitedBy Voyager 2 ⓘ

Referenced by (3)

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

Uranus → largeMoon → Ariel ⓘ
Umbriel → neighboringMoons → Ariel ⓘ
William Lassell → discovered → Ariel ⓘ