Prometheus

E555806

Prometheus is a small inner moon of Saturn known for gravitationally shaping and maintaining the structure of the planet’s F ring.

All labels observed (1)

Label Occurrences
Prometheus canonical 8

How this entity was disambiguated

Statements (45)

Predicate Object
instanceOf inner moon of Saturn
moon of Saturn
natural satellite
albedo 0.6
assumedComposition water ice with porosity
belongsToPlanetarySystem Saturnian system
Solar System
belongsToRingSystem Saturn’s ring system
linked to: Saturn ring system
catalogueDesignation Saturn XVI
causesFeaturesIn channels in Saturn’s F ring
dimensions_km 148 × 100 × 68
discoveredBy G. E. Danielson
S. A. Collins
discoveredByMission Voyager 1
discoveryYear 1980
escapeVelocity_m_per_s 35
explorationBy Cassini–Huygens
Voyager 1
Voyager 2
gravitationallyShapes Saturn’s F ring
linked to: F ring
helpsMaintainStructureOf Saturn’s F ring
linked to: F ring
imagedInDetailBy Cassini–Huygens
locatedWithin Roche Division
meanDensity_g_per_cm3 0.48
meanMotionResonanceWith F ring
meanRadius_km 43
namedAfter Prometheus (Titan from Greek mythology)
linked to: Prometheus

Prometheus (mythology)
linked to: Prometheus
orbitalEccentricity 0.0022
orbitalInclination_degrees 0.008
orbitalPeriod_hours 14.7
orbits Saturn
orbitsInteriorTo Saturn’s F ring
linked to: F ring
provisionalDesignation S/1980 S 27
relativePositionAmongMoons inner shepherd of the F ring
roleInRingSystem F-ring shepherd moon
rotationPeriod_hours 14.7
rotationState synchronous rotation
semiMajorAxis_km 139380
shape irregular
surfaceAppearance grooved
heavily cratered
surfaceGravity_m_per_s2 0.0033
tidallyLockedTo Saturn
visualMagnitude 15.8

How these facts were elicited

Referenced by (8)

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

F ring shepherdedBy Prometheus
F ring hasOrbitalResonanceWith Prometheus
Saturn ring system influencedBy Prometheus
Pandora orbitsOutside Prometheus
Pandora isCoShepherdWith Prometheus
Saturnian system hasNotableMoon Prometheus
David (android) firstAppearance Prometheus