Tethys

E29512
astronomical object icy moon moon of Saturn natural satellite

Tethys is one of Saturn’s mid-sized icy moons, known for its bright, heavily cratered surface and massive Odysseus impact basin.

Statements (49)

Predicate Object
instanceOf astronomical object →
icy moon →
moon of Saturn →
natural satellite →
albedo high →
axialTilt_deg 0 →
belongsTo Solar System →
belongsToPlanetaryRingRegion within E-ring region of Saturn →
catalogDesignation Saturn →
surface form: Saturn III
diameter_km 1062 →
discoveredBy Giovanni Domenico Cassini →
discoveredWith telescope →
discoveryDate 1684 →
escapeVelocity_km_per_s 0.394 →
geometricAlbedo 0.8 →
hasCoOrbitalMoon Calypso →
Telesto →
hasFeature Ithaca Chasma →
Odysseus impact basin →
IthacaChasmaDepth_km up to 5 →
IthacaChasmaLength_km ~2000 →
IthacaChasmaWidth_km up to 100 →
mass_kg 6.17e20 →
meanDensity_g_per_cm3 0.98 →
meanRadius_km 531 →
meanSurfaceGravity_m_per_s2 0.146 →
memberOf Saturn →
surface form: Saturnian system
namedAfter Tethys →
surface form: Tethys (mythology)

Tethys →
surface form: Titaness Tethys
observedBy Cassini–Huygens →
surface form: Cassini spacecraft

Voyager 1 →
Voyager 2 →
OdysseusDiameter_km ~450 →
orbitalEccentricity 0.0001 →
orbitalInclination_deg 1.09 →
orbitalPeriod_days 1.887802 →
orbits Saturn →
primaryConstituent water ice →
rotationPeriod_days 1.887802 →
rotationState synchronous rotation →
secondaryConstituent rock →
semiMajorAxis_km 294660 →
shape roughly spherical →
surfaceColor very bright →
surfaceComposition water ice →
surfaceTemperature_K ~86 →
surfaceType heavily cratered →
trojanMoonOf Calypso →
Telesto →

Referenced by (6)

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

Saturn → hasMajorMoon → Tethys →
Titans → includes → Tethys →
Clymene → parent → Tethys →
Uranus → parentOf → Tethys →
Iapetus → sibling → Tethys →