Kuiper Belt object Arrokoth
E145768
Kuiper Belt object
New Horizons flyby target
bilobed world
cold classical Kuiper Belt object
contact binary
minor planet
trans-Neptunian object
Kuiper Belt object Arrokoth is a distant, bilobed trans-Neptunian world famously visited and imaged in detail by NASA’s New Horizons spacecraft after its Pluto flyby.
All labels observed (5)
| Label | Occurrences |
|---|---|
| 486958 Arrokoth | 2 |
| 2014 MU69 | 1 |
| Arrokoth | 1 |
| Arrokoth (486958) by New Horizons | 1 |
| Kuiper Belt object Arrokoth canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1274747 — 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: Kuiper Belt object Arrokoth Context triple: [New Horizons, secondaryTarget, Kuiper Belt object Arrokoth]
-
A.
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.
-
B.
Kuiper Belt objects
Kuiper Belt objects are icy celestial bodies orbiting the Sun beyond Neptune, thought to be remnants from the early solar system and the source of many short-period comets.
-
C.
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.
-
D.
Eris
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.
-
E.
Eris
Eris is the Greek goddess of strife and discord, often depicted as a malevolent force sowing conflict among gods and mortals.
- 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: Kuiper Belt object Arrokoth Target entity description: Kuiper Belt object Arrokoth is a distant, bilobed trans-Neptunian world famously visited and imaged in detail by NASA’s New Horizons spacecraft after its Pluto flyby.
-
A.
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.
-
B.
Kuiper Belt objects
Kuiper Belt objects are icy celestial bodies orbiting the Sun beyond Neptune, thought to be remnants from the early solar system and the source of many short-period comets.
-
C.
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.
-
D.
Eris
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.
-
E.
Eris
Eris is the Greek goddess of strife and discord, often depicted as a malevolent force sowing conflict among gods and mortals.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Kuiper Belt object
ⓘ
New Horizons flyby target ⓘ bilobed world ⓘ cold classical Kuiper Belt object ⓘ contact binary ⓘ minor planet ⓘ trans-Neptunian object ⓘ |
| albedo | low ⓘ |
| discoveredBy |
New Horizons
ⓘ
surface form:
New Horizons KBO Search team
|
| discoveredUsing | Hubble Space Telescope ⓘ |
| discoveryDate | 2014-06-26 ⓘ |
| eccentricity | about 0.04 ⓘ |
| flybyDate | 2019-01-01 ⓘ |
| flybyDistance | about 3,500 kilometers ⓘ |
| flybyMission |
New Horizons
ⓘ
surface form:
NASA New Horizons
|
| formationScenario | gentle merger of two primordial bodies ⓘ |
| hasDynamicalClass |
Kuiper Belt
ⓘ
surface form:
cold classical Kuiper Belt
|
| hasLobes | two main lobes ⓘ |
| hasMinorPlanetDesignation |
Kuiper Belt object Arrokoth
self-linksurface differs
ⓘ
surface form:
486958 Arrokoth
|
| hasNoKnownMoons | true ⓘ |
| hasNoKnownRings | true ⓘ |
| inclination | about 2.4 degrees ⓘ |
| isMostDistantObjectVisitedBySpacecraft | true ⓘ |
| largerLobeNickname | Ultima ⓘ |
| locatedIn |
Kuiper Belt
ⓘ
outer Solar System ⓘ |
| meanDiameter | about 36 kilometers ⓘ |
| nameApprovalDate | 2019-11-12 ⓘ |
| nameApprovedBy | International Astronomical Union ⓘ |
| namedAfter | Powhatan/Algonquian word for sky ⓘ |
| nameMeaning | “sky” in the Powhatan/Algonquian language ⓘ |
| observedBy |
Hubble Space Telescope
ⓘ
LORRI ⓘ
surface form:
New Horizons LORRI camera
New Horizons Ralph instrument ⓘ |
| orbitalPeriod | about 298 years ⓘ |
| orbits | Sun ⓘ |
| previouslyDesignated |
Kuiper Belt object Arrokoth
self-linksurface differs
ⓘ
surface form:
2014 MU69
|
| previouslyNicknamed | Ultima Thule ⓘ |
| rotationPeriod | about 15.9 hours ⓘ |
| scientificSignificance | provides clues to planetesimal formation ⓘ |
| semiMajorAxis | about 44.6 astronomical units ⓘ |
| shape | bilobed contact binary ⓘ |
| smallerLobeNickname | Thule ⓘ |
| surfaceColor | reddish ⓘ |
| surfaceComposition | complex organic materials (tholins) ⓘ |
| surfaceFeatures |
bright spots
ⓘ
depressed neck region ⓘ few craters ⓘ |
| visitedBy |
New Horizons
ⓘ
surface form:
New Horizons spacecraft
|
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: Kuiper Belt object Arrokoth Description of subject: Kuiper Belt object Arrokoth is a distant, bilobed trans-Neptunian world famously visited and imaged in detail by NASA’s New Horizons spacecraft after its Pluto flyby.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Arrokoth
Kuiper Belt object Arrokoth
→
hasMinorPlanetDesignation
→
Kuiper Belt object Arrokoth
self-linksurface differs
ⓘ
subject surface form:
Arrokoth
this entity surface form:
486958 Arrokoth
Kuiper Belt object Arrokoth
→
previouslyDesignated
→
Kuiper Belt object Arrokoth
self-linksurface differs
ⓘ
subject surface form:
Arrokoth
this entity surface form:
2014 MU69
this entity surface form:
486958 Arrokoth
this entity surface form:
Arrokoth (486958) by New Horizons