Quaoar
E81703
Quaoar is a large, distant trans-Neptunian object in the Kuiper Belt, notable for its nearly circular orbit and for having a small moon named Weywot.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| (50000) Quaoar | 1 |
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Kuiper Belt object
ⓘ
cubewano ⓘ dwarf-planet candidate ⓘ minor planet ⓘ trans-Neptunian object ⓘ |
| catalogDesignation |
Quaoar
self-linksurface differs
ⓘ
surface form:
(50000) Quaoar
|
| discoveredBy |
Chad Trujillo
ⓘ
Michael E. Brown ⓘ |
| discoveryDate | 2002-06-04 ⓘ |
| discoverySite | Palomar Observatory ⓘ |
| discoveryStatus | numbered minor planet ⓘ |
| hasAbsoluteMagnitude | about 2.6 ⓘ |
| hasAlbedo | about 0.10 ⓘ |
| hasAphelionDistance | about 45.5 AU ⓘ |
| hasDensity | about 2.0 g/cm³ ⓘ |
| hasMass | about 1.4e21 kg ⓘ |
| hasMeanDiameter | about 1110 km ⓘ |
| hasMoon | Weywot ⓘ |
| hasNearlyCircularOrbit | true ⓘ |
| hasOrbitalEccentricity | 0.038 ⓘ |
| hasOrbitalInclination | 8.0 degrees ⓘ |
| hasOrbitalPeriod | about 286 Earth years ⓘ |
| hasPerihelionDistance | about 41.9 AU ⓘ |
| hasRadius | about 555 km ⓘ |
| hasRingSystem | yes ⓘ |
| hasRotationPeriod | about 17.7 hours ⓘ |
| hasSatellite | Weywot ⓘ |
| hasSemiMajorAxis | about 43.7 AU ⓘ |
| hasSpectralType | neutral to moderately red ⓘ |
| hasSurfaceComposition |
ammonia hydrates
ⓘ
methane ice ⓘ water ice ⓘ |
| hasSurfaceTemperature | about 44 K ⓘ |
| isInResonanceWith | none (classical Kuiper Belt object) ⓘ |
| isLargerThan | most Kuiper Belt objects ⓘ |
| isSmallerThan |
Eris
ⓘ
Pluto ⓘ |
| locatedIn | Kuiper Belt ⓘ |
| mpcNumber | 50000 ⓘ |
| namedAfter |
Tongva
ⓘ
surface form:
Tongva creator deity Qua-o-ar
|
| orbitalRegion | trans-Neptunian region ⓘ |
| orbits | Sun ⓘ |
| ringDiscoveredBy |
Bruno Morgado
ⓘ
collaborators using stellar occultations ⓘ |
| ringDiscoveryDate | 2023 ⓘ |
| ringLocation | outside Quaoar Roche limit ⓘ |
| satelliteDiscoveredBy | Michael E. Brown ⓘ |
| satelliteDiscoveryDate | 2007 ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
(50000) Quaoar
subject surface form:
Kuiper Belt object