S/1899 S 1

E257501
irregular satellite natural satellite outer moon satellite of Saturn

S/1899 S 1 is the provisional discovery designation originally assigned to Phoebe, one of Saturn’s irregular outer moons.

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All labels observed (1)

Label Occurrences
S/1899 S 1 canonical 2

Statements (45)

Predicate Object
instanceOf irregular satellite ⓘ
natural satellite ⓘ
outer moon ⓘ
satellite of Saturn ⓘ
albedo low ⓘ
alternateName Phoebe ⓘ
axialTilt_degrees small ⓘ
belongsToCategory Irregular satellites ⓘ
Moons of Saturn ⓘ
Retrograde satellites ⓘ
belongsToDynamicalClass Phoebe group ⓘ
belongsToPlanetarySystem Saturnian system ⓘ
Solar System ⓘ
density_g_per_cm3 approximately 1.6 ⓘ
discoverer William Henry Pickering ⓘ
discoveryMethod ground-based telescope observations ⓘ
discoveryYear 1899 ⓘ
escapeVelocity_m_per_s approximately 100 ⓘ
flybyYear_Cassini 2004 ⓘ
governingNamingAuthority International Astronomical Union ⓘ
hasCrateredSurface true ⓘ
hasOfficialName Phoebe ⓘ
hasRetrogradeOrbit true ⓘ
hasSpacecraftFlyby Cassini–Huygens ⓘ
isFirstDiscoveredIrregularMoonOfSaturn true ⓘ
isProvisionalDiscoveryDesignation true ⓘ
likelyCapturedObject true ⓘ
meanDiameter_km approximately 213 ⓘ
meanRadius_km approximately 106.5 ⓘ
namedAfter Phoebe from Greek mythology ⓘ
notableCrater Jason ⓘ
orbitalDirection retrograde ⓘ
orbitalEccentricity approximately 0.163 ⓘ
orbitalInclination_degrees approximately 175 ⓘ
orbitalPeriod_days approximately 550 ⓘ
orbits Saturn ⓘ
possibleOrigin captured Kuiper belt object or centaur ⓘ
provisionalDesignationFor Phoebe ⓘ
rotationPeriod_hours approximately 9.27 ⓘ
satelliteType irregular ⓘ
semiMajorAxis_km approximately 12952000 ⓘ
shape irregular ⓘ
spectralType C-type or D-type like ⓘ
surfaceColor very dark gray ⓘ
surfaceComposition dark, carbon-rich material ⓘ

Referenced by (2)

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

Phoebe → catalogCode → S/1899 S 1 ⓘ
Saturn IX → alternativeName → S/1899 S 1 ⓘ