(55636) 2002 TX300
E468358
Haumea family member
Kuiper Belt object
cubewano
dwarf planet candidate
minor planet
trans-Neptunian object
(55636) 2002 TX300 is a bright, fast-rotating Kuiper Belt object and dwarf-planet candidate believed to be a fragment of the icy, elongated dwarf planet Haumea.
All labels observed (1)
| Label | Occurrences |
|---|---|
| (55636) 2002 TX300 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4756665 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: (55636) 2002 TX300 Context triple: [Haumea family, hasMember, (55636) 2002 TX300]
-
A.
25143 Itokawa
25143 Itokawa is a small, peanut-shaped near-Earth asteroid that became the first celestial body from which samples were returned to Earth by the Japanese Hayabusa mission.
-
B.
20000 Varuna
20000 Varuna is a large trans-Neptunian object in the Kuiper Belt, notable for its rapid rotation, elongated shape, and status as one of the earliest discovered significant bodies beyond Neptune.
-
C.
2004 DW
2004 DW is the provisional designation for Orcus, a large Kuiper Belt dwarf-planet candidate often compared to Pluto in size and orbital characteristics.
-
D.
Quaoar
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.
-
E.
Makemake
Makemake is a large, icy dwarf planet in the Kuiper Belt, known for its extremely cold surface and status as one of the most massive objects beyond Neptune.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: (55636) 2002 TX300 Target entity description: (55636) 2002 TX300 is a bright, fast-rotating Kuiper Belt object and dwarf-planet candidate believed to be a fragment of the icy, elongated dwarf planet Haumea.
-
A.
25143 Itokawa
25143 Itokawa is a small, peanut-shaped near-Earth asteroid that became the first celestial body from which samples were returned to Earth by the Japanese Hayabusa mission.
-
B.
20000 Varuna
20000 Varuna is a large trans-Neptunian object in the Kuiper Belt, notable for its rapid rotation, elongated shape, and status as one of the earliest discovered significant bodies beyond Neptune.
-
C.
2004 DW
2004 DW is the provisional designation for Orcus, a large Kuiper Belt dwarf-planet candidate often compared to Pluto in size and orbital characteristics.
-
D.
Quaoar
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.
-
E.
Makemake
Makemake is a large, icy dwarf planet in the Kuiper Belt, known for its extremely cold surface and status as one of the most massive objects beyond Neptune.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Haumea family member
ⓘ
Kuiper Belt object ⓘ cubewano ⓘ dwarf planet candidate ⓘ minor planet ⓘ trans-Neptunian object ⓘ |
| absoluteMagnitude | approximately 3.3 ⓘ |
| albedo | high ⓘ |
| aphelionDistance | approximately 48.5 AU ⓘ |
| belongsToCollisionalFamily | Haumea family ⓘ |
| belongsToDynamicalClass | classical Kuiper belt object ⓘ |
| belongsToPopulation | hot classical Kuiper belt ⓘ |
| color | neutral ⓘ |
| diameter | approximately 286 km ⓘ |
| hasApparentMagnitude | approximately 20 at opposition ⓘ |
| hasAxisOfOrbit | prograde ⓘ |
| hasDiscoveryDate | 2002-10-15 ⓘ |
| hasLightcurveAmplitude | small ⓘ |
| hasMeanDensity | low to moderate ⓘ |
| hasMinorPlanetNumber | 55636 ⓘ |
| hasNoKnown | satellites ⓘ |
| hasObservationArc | greater than 20 years ⓘ |
| hasOrbitalUncertainty | low ⓘ |
| hasPhaseCoefficient | low ⓘ |
| hasProvisionalDesignation | 2002 TX300 ⓘ |
| hasShape | likely elongated or irregular ⓘ |
| hasSurfaceFeature | very deep water-ice absorption bands ⓘ |
| hasTisserandParameterWithRespectToJupiter | greater than 3 ⓘ |
| isBelievedToBe | fragment of Haumea ⓘ |
| isCandidateFor | hydrostatic equilibrium assessment ⓘ |
| isGravitationallyBoundTo | Sun ⓘ |
| isIn |
Kuiper belt
ⓘ
linked to:
Kuiper Belt
outer Solar System ⓘ |
| isResonantWith | none (non-resonant classical object) ⓘ |
| isSimilarTo | Haumea in spectral properties ⓘ |
| orbitalEccentricity | approximately 0.12 ⓘ |
| orbitalInclination | approximately 25 degrees ⓘ |
| orbitalPeriod | approximately 284 years ⓘ |
| orbits | Sun ⓘ |
| perihelionDistance | approximately 37.9 AU ⓘ |
| rotation | fast-rotating ⓘ |
| rotationPeriod | approximately 7.9 hours ⓘ |
| semiMajorAxis | approximately 43.2 AU ⓘ |
| spectralType | water-ice dominated ⓘ |
| surfaceComposition | water ice rich ⓘ |
| wasDiscoveredAt | Kitt Peak National Observatory ⓘ |
| wasDiscoveredBy | Spacewatch ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: (55636) 2002 TX300 Description of subject: (55636) 2002 TX300 is a bright, fast-rotating Kuiper Belt object and dwarf-planet candidate believed to be a fragment of the icy, elongated dwarf planet Haumea.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.