globular cluster Arp 2
E502418
Globular cluster Arp 2 is a dense, spherical collection of ancient stars associated with the Sagittarius Dwarf Elliptical Galaxy on the outskirts of the Milky Way.
All labels observed (1)
| Label | Occurrences |
|---|---|
| globular cluster Arp 2 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T5201967 — 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: globular cluster Arp 2 Context triple: [SagDEG, contains, globular cluster Arp 2]
-
A.
globular cluster NGC 6712
Globular cluster NGC 6712 is a relatively loose, heavily reddened globular star cluster in the Milky Way, notable for its interaction with the Galactic disk and significant tidal stripping.
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B.
open cluster NGC 2244
Open cluster NGC 2244 is a young, bright star cluster whose hot, massive stars illuminate and sculpt the surrounding Rosette Nebula in the constellation Monoceros.
-
C.
Hercules Globular Cluster
The Hercules Globular Cluster is a bright, densely packed spherical star cluster in the constellation Hercules, notable as one of the most prominent and studied globular clusters in the northern sky.
-
D.
openCluster Stephenson 2
Stephenson 2 is a massive, heavily reddened open star cluster rich in red supergiants, located in the direction of the constellation Scutum.
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E.
Beti-Fang cluster
The Beti-Fang cluster is a group of closely related Bantu languages spoken primarily in Cameroon, Equatorial Guinea, and neighboring Central African regions.
- 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: globular cluster Arp 2 Target entity description: Globular cluster Arp 2 is a dense, spherical collection of ancient stars associated with the Sagittarius Dwarf Elliptical Galaxy on the outskirts of the Milky Way.
-
A.
globular cluster NGC 6712
Globular cluster NGC 6712 is a relatively loose, heavily reddened globular star cluster in the Milky Way, notable for its interaction with the Galactic disk and significant tidal stripping.
-
B.
open cluster NGC 2244
Open cluster NGC 2244 is a young, bright star cluster whose hot, massive stars illuminate and sculpt the surrounding Rosette Nebula in the constellation Monoceros.
-
C.
Hercules Globular Cluster
The Hercules Globular Cluster is a bright, densely packed spherical star cluster in the constellation Hercules, notable as one of the most prominent and studied globular clusters in the northern sky.
-
D.
openCluster Stephenson 2
Stephenson 2 is a massive, heavily reddened open star cluster rich in red supergiants, located in the direction of the constellation Scutum.
-
E.
Beti-Fang cluster
The Beti-Fang cluster is a group of closely related Bantu languages spoken primarily in Cameroon, Equatorial Guinea, and neighboring Central African regions.
- F. None of above. chosen
Statements (33)
| Predicate | Object |
|---|---|
| instanceOf | globular cluster ⓘ |
| age | ancient ⓘ |
| associatedWith | Sagittarius Dwarf Spheroidal Galaxy NERFINISHED ⓘ |
| belongsTo | Sagittarius stream NERFINISHED ⓘ |
| catalogCode | Arp 2 NERFINISHED ⓘ |
| celestialBodyType | globular cluster ⓘ |
| contains |
horizontal branch stars
ⓘ
red giant branch stars ⓘ variable stars ⓘ |
| discoveredBy | Halton Arp NERFINISHED ⓘ |
| distanceFrom | Milky Way center NERFINISHED ⓘ |
| hasEnvironment | low-density outer halo region ⓘ |
| hasMorphology | relatively diffuse globular cluster ⓘ |
| hasShape | spherical ⓘ |
| hasStellarPopulation |
Population II stars
ⓘ
old stars ⓘ |
| isGravitationallyBoundSystemOf | stars ⓘ |
| isLocatedOnOutskirtsOf | Milky Way NERFINISHED ⓘ |
| isPartOf | Sagittarius dwarf spheroidal tidal debris NERFINISHED ⓘ |
| isSatelliteClusterOf | Sagittarius Dwarf Spheroidal Galaxy NERFINISHED ⓘ |
| isUsedToStudy |
accretion of dwarf galaxies by the Milky Way
ⓘ
chemical evolution of dwarf galaxies ⓘ dynamics of the Sagittarius stream ⓘ |
| locatedIn |
Milky Way halo
NERFINISHED
ⓘ
Sagittarius Dwarf Spheroidal Galaxy NERFINISHED ⓘ |
| memberOf | Sagittarius dwarf galaxy globular cluster system NERFINISHED ⓘ |
| metallicity | low metallicity ⓘ |
| namedAfter | Halton Arp NERFINISHED ⓘ |
| observedIn |
infrared wavelengths
ⓘ
optical wavelengths ⓘ |
| orbits | Sagittarius Dwarf Spheroidal Galaxy NERFINISHED ⓘ |
| partOf | Local Group NERFINISHED ⓘ |
| satelliteOf | Milky Way NERFINISHED ⓘ |
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: globular cluster Arp 2 Description of subject: Globular cluster Arp 2 is a dense, spherical collection of ancient stars associated with the Sagittarius Dwarf Elliptical Galaxy on the outskirts of the Milky Way.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.