Calypso

E170950

Calypso is a small Trojan moon of Saturn that shares Tethys’s orbit, residing near one of its stable Lagrange points.

All labels observed (1)

Label Occurrences
Calypso canonical 5

How this entity was disambiguated

Statements (44)

Predicate Object
instanceOf Trojan moon
moon of Saturn
natural satellite
albedo ≈ 0.6
belongsTo outer Solar System
belongsToGroup Tethys Trojan moons
catalogDesignation Saturn XIV
coOrbitalWith Telesto
dimensions 30.2 × 23.0 × 14.4 km
discoveredBy Dan Pascu
Douglas G. Currie
P. Kenneth Seidelmann
William A. Baum NERFINISHED
discoveryDate 1980-03-13
discoveryMethod ground-based telescope observations
escapeVelocity ≈ 0.006 km/s
hasOrbitalResonanceWith Mimas (indirect via Tethys resonance)
hemisphereLeading heavily cratered
hemisphereTrailing covered with fine icy material
imagedBy Cassini–Huygens
Voyager 2
lagrangePointType L5
locatedAt Tethys
surface form: Tethys L5 Lagrange point
mass ≈ 2.5×10^15 kg
meanDensity ≈ 0.5 g/cm³
meanRadius 10.7 km
meanSurfaceTemperature ≈ 78 K
memberOf Saturnian system
namedAfter Calypso
surface form: Calypso (mythology)
namedBy International Astronomical Union
orbitalEccentricity 0.0009
orbitalInclination 1.6° to Saturn’s equator
orbitalPeriod 1.8878 days
orbits Saturn
parentPlanet Saturn
provisionalDesignation S/1980 S 25
rotationPeriod 1.8878 days
semiMajorAxis 294660 km
shape irregular
sharesOrbitWith Tethys
surfaceAppearance bright and smooth
surfaceComposition water ice
synchronousRotation true
trails Tethys

How these facts were elicited

Referenced by (5)

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

Tethys hasCoOrbitalMoon Calypso
Tethys trojanMoonOf Calypso
Asia sibling Calypso
Telesto coOrbitalWith Calypso