90482 Orcus (2004 DW)

E313700

90482 Orcus (2004 DW) is a large trans-Neptunian object in the Kuiper Belt, often considered a plutino due to its 2:3 orbital resonance with Neptune and noted for its similarities to Pluto.

All labels observed (1)

Label Occurrences
90482 Orcus (2004 DW) canonical 1

How this entity was disambiguated

Statements (48)

Predicate Object
instanceOf Kuiper Belt object
minor planet
plutino
resonant trans-Neptunian object
trans-Neptunian object
belongsToDynamicalClass plutino
discoveredAt Palomar Observatory
discoveredBy Chad Trujillo
surface form: Chadwick A. Trujillo

David L. Rabinowitz
Michael E. Brown
discoveryDate 2004-02-17
hasAbsoluteMagnitude 2.3
hasAphelionDistanceAU 47.8
hasApproximateAlbedo 0.23
hasApproximateDiameterKilometers 910
hasDensityGramsPerCubicCentimeter 1.5
hasDiscoveryMethod CCD imaging survey
hasEccentricOrbit true
hasHeliocentricOrbit true
hasIAUDesignation 90482 Orcus
surface form: (90482) Orcus
hasInclinedOrbit true
hasMassKilograms 6.4e20
hasMeanDistanceFromSunAU 39.2
hasMinorPlanetNumber 90482
hasOrbitalEccentricity 0.22
hasOrbitalInclinationDegrees 20.6
hasOrbitalPeriodYears 247
hasOrbitalResonanceWith Neptune
hasPerihelionDistanceAU 30.7
hasProvisionalDesignation 2004 DW
hasRotationPeriodHours 10.5
hasSatellite Vanth
hasSemiMajorAxisAU 39.2
hasSimilarOrbitalConfigurationTo Pluto
hasSpectralType neutral to slightly red
hasSurfaceComposition possible ammonia hydrates
water ice
hasSystem Orcus–Vanth system
isBinarySystemWith Vanth
isDynamicallySimilarTo Pluto
isIn Kuiper Belt
isInMeanMotionResonance Neptune
isPartOf Solar System
isPotentialDwarfPlanet true
namedAfter Orcus
Roman god of the underworld
orbitalResonanceRatio 2:3
orbits Sun

How these facts were elicited

Referenced by (1)

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

Orcus hasAlternativeName 90482 Orcus (2004 DW)