Eris
E18769
Kuiper belt object
Solar System object
celestial body
dwarf planet
minor planet
scattered disc object
trans-Neptunian object
Eris is a distant, icy dwarf planet in the outer reaches of the Solar System, notable for its size comparable to Pluto and its role in prompting the redefinition of planetary status.
Observed surface forms (2)
| Surface form | Occurrences |
|---|---|
| (136199) Eris | 1 |
| 2003 UB313 | 1 |
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
Kuiper belt object
ⓘ
Solar System object ⓘ celestial body ⓘ dwarf planet ⓘ minor planet ⓘ scattered disc object ⓘ trans-Neptunian object ⓘ |
| absoluteMagnitude | about -1.2 ⓘ |
| albedo | about 0.96 ⓘ |
| aphelionDistance | about 97.5 AU ⓘ |
| belongsTo | Solar System ⓘ |
| classificationChanged | 2006 IAU dwarf planet definition ⓘ |
| color | neutral to slightly gray ⓘ |
| diameter | about 2326 km ⓘ |
| discoveredBy |
Chad Trujillo
ⓘ
David L. Rabinowitz ⓘ Michael E. Brown ⓘ |
| discoveryDate | 2005-01-05 ⓘ |
| discoveryMethod | CCD imaging survey ⓘ |
| discoverySite | Palomar Observatory ⓘ |
| distanceFromSun | greater than Pluto on average ⓘ |
| equilibriumTemperature | about 30 K ⓘ |
| escapeVelocity | about 1.38 km/s ⓘ |
| hasAtmosphere | possible transient atmosphere near perihelion ⓘ |
| hasSatellite | Dysnomia ⓘ |
| IAUDesignation |
Eris
self-linksurface differs
ⓘ
surface form:
(136199) Eris
|
| influenced | redefinition of planet by IAU in 2006 ⓘ |
| isRound | true ⓘ |
| mass | about 1.66e22 kg ⓘ |
| meanRadius | about 1163 km ⓘ |
| minorPlanetNumber | 136199 ⓘ |
| namedAfter | Eris (Greek goddess of strife and discord) ⓘ |
| orbitalEccentricity | about 0.44 ⓘ |
| orbitalInclination | about 44 degrees ⓘ |
| orbitalPeriod | about 557 Earth years ⓘ |
| orbitalRegion |
Kuiper Belt objects
ⓘ
surface form:
outer Solar System
scattered disc ⓘ |
| orbits | Sun ⓘ |
| perihelionDistance | about 38 AU ⓘ |
| provisionalDesignation |
Eris
self-linksurface differs
ⓘ
surface form:
2003 UB313
|
| rotationPeriod | about 25.9 hours ⓘ |
| satelliteCount | 1 ⓘ |
| semiMajorAxis | about 67.7 AU ⓘ |
| similarInSizeTo | Pluto ⓘ |
| spectralType | TNO (dwarf planet) ⓘ |
| surfaceComposition |
methane ice
ⓘ
nitrogen ice ⓘ water ice ⓘ |
| surfaceGravity | about 0.82 m/s² ⓘ |
| surfaceTemperature | about 30 K to 50 K ⓘ |
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
(136199) Eris
subject surface form:
Kuiper Belt object
this entity surface form:
2003 UB313