Phoebe (moon of Saturn)
E557044
Phoebe (moon of Saturn) is an irregular, retrograde outer moon of Saturn believed to be a captured object from the Kuiper Belt, notable for its dark surface and heavily cratered terrain.
Observed surface forms (2)
| Surface form | Occurrences |
|---|---|
| Phoebe | 0 |
| Phoebe (moon) | 1 |
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
moon of Saturn
ⓘ
natural satellite ⓘ outer moon of Saturn ⓘ retrograde satellite ⓘ |
| albedo_geometric | 0.06 ⓘ |
| associatedStructure | Phoebe ring NERFINISHED ⓘ |
| belongsTo | Solar System NERFINISHED ⓘ |
| belongsToGroup | Norse group of Saturnian moons ⓘ |
| belongsToPlanetarySystem | Saturnian system ⓘ |
| catalogDesignation | Saturn IX NERFINISHED ⓘ |
| density_g_per_cm3 | 1.6 ⓘ |
| discoveredBy | William Henry Pickering NERFINISHED ⓘ |
| discoveryDate | 1899-03-17 ⓘ |
| discoveryMethod | ground-based telescope observations ⓘ |
| discoveryYear | 1899 ⓘ |
| escapeVelocity_m_per_s | 100 ⓘ |
| exploredBy | Cassini–Huygens spacecraft NERFINISHED ⓘ |
| flybyDate | 2004-06-11 ⓘ |
| hasCrater | Jason crater NERFINISHED ⓘ |
| imagedBy | Cassini spacecraft NERFINISHED ⓘ |
| likelyOrigin | captured Kuiper Belt object ⓘ |
| locatedIn | outer Saturnian system ⓘ |
| mass_kg | 8.3e18 ⓘ |
| meanDiameter_km | 213 ⓘ |
| meanOrbitalDistanceFromSaturn_Mm | 12.95 ⓘ |
| meanRadius_km | 106.5 ⓘ |
| meanSurfaceGravity_m_per_s2 | 0.049 ⓘ |
| namedAfter | Phoebe (Titaness from Greek mythology) NERFINISHED ⓘ |
| orbitalDirection | retrograde ⓘ |
| orbitalEccentricity | 0.1634 ⓘ |
| orbitalInclination_degrees | 175.2 ⓘ |
| orbitalPeriod_days | 550.3 ⓘ |
| orbits | Saturn NERFINISHED ⓘ |
| orbitsStar | Sun NERFINISHED ⓘ |
| roleInSystem | source of material for Saturn’s Phoebe ring ⓘ |
| rotationPeriod_hours | 9.27 ⓘ |
| rotationState | not tidally locked to Saturn ⓘ |
| satelliteType | irregular ⓘ |
| semiMajorAxis_km | 12952000 ⓘ |
| shape | roughly spherical but irregular ⓘ |
| spectralType | C-type or D-type like body ⓘ |
| surfaceBrightness | low ⓘ |
| surfaceColor | very dark ⓘ |
| surfaceComposition |
carbon-rich compounds
ⓘ
possible silicates ⓘ water ice mixed with dark material ⓘ |
| surfaceFeature |
heavily cratered terrain
ⓘ
large impact basins ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Phoebe (moon)