Hercules Cluster (Abell 2151)
E922779
Hercules Cluster (Abell 2151) is a nearby, irregularly shaped galaxy cluster rich in spiral galaxies and active interactions, located in the constellation Hercules.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Hercules Cluster (Abell 2151) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11376971 — 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: Hercules Cluster (Abell 2151) Context triple: [Hercules, contains, Hercules Cluster (Abell 2151)]
-
A.
Ptolemy Cluster
The Ptolemy Cluster is a bright open star cluster in the constellation Scorpius, easily visible to the naked eye and popular with amateur astronomers.
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B.
Coma Cluster
The Coma Cluster is a massive, nearby galaxy cluster rich in elliptical galaxies and dark matter, located in the constellation Coma Berenices.
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C.
Virgo Cluster
The Virgo Cluster is a massive, nearby galaxy cluster that serves as the central, dominant concentration of galaxies in our local region of the universe.
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D.
Perseus Cluster
The Perseus Cluster is a massive, nearby galaxy cluster dominated by the bright galaxy NGC 1275 and known for its hot X-ray–emitting gas and powerful radio and acoustic phenomena in its intracluster medium.
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E.
Fornax Cluster
The Fornax Cluster is a relatively nearby, rich cluster of galaxies dominated by early-type galaxies and centered on the giant elliptical NGC 1399 in the constellation Fornax.
- 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: Hercules Cluster (Abell 2151) Target entity description: Hercules Cluster (Abell 2151) is a nearby, irregularly shaped galaxy cluster rich in spiral galaxies and active interactions, located in the constellation Hercules.
-
A.
Ptolemy Cluster
The Ptolemy Cluster is a bright open star cluster in the constellation Scorpius, easily visible to the naked eye and popular with amateur astronomers.
-
B.
Coma Cluster
The Coma Cluster is a massive, nearby galaxy cluster rich in elliptical galaxies and dark matter, located in the constellation Coma Berenices.
-
C.
Virgo Cluster
The Virgo Cluster is a massive, nearby galaxy cluster that serves as the central, dominant concentration of galaxies in our local region of the universe.
-
D.
Perseus Cluster
The Perseus Cluster is a massive, nearby galaxy cluster dominated by the bright galaxy NGC 1275 and known for its hot X-ray–emitting gas and powerful radio and acoustic phenomena in its intracluster medium.
-
E.
Fornax Cluster
The Fornax Cluster is a relatively nearby, rich cluster of galaxies dominated by early-type galaxies and centered on the giant elliptical NGC 1399 in the constellation Fornax.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Abell galaxy cluster
ⓘ
galaxy cluster ⓘ rich galaxy cluster ⓘ |
| cataloguedIn | Abell catalogue of rich clusters of galaxies NERFINISHED ⓘ |
| contains | numerous galaxy pairs and groups in interaction ⓘ |
| discoveredBy | George O. Abell NERFINISHED ⓘ |
| discoveryMethod | inspection of Palomar Observatory Sky Survey plates ⓘ |
| distanceFromEarth |
about 150 megaparsecs
ⓘ
about 500 million light-years ⓘ |
| hasAbellDistanceClass | distance class 4 ⓘ |
| hasAbellRichnessClass | richness class 2 ⓘ |
| hasAlternativeName |
A2151
NERFINISHED
ⓘ
Abell 2151 NERFINISHED ⓘ |
| hasClusterType |
irregular, non–cool-core cluster
ⓘ
spiral-rich cluster ⓘ |
| hasDeclination | +17° ⓘ |
| hasEnvironment | low-density large-scale surroundings compared to very rich clusters ⓘ |
| hasGalaxyPopulation |
high fraction of late-type galaxies
ⓘ
relatively low fraction of S0 galaxies ⓘ relatively low fraction of elliptical galaxies ⓘ |
| hasIntraclusterMedium | hot diffuse gas ⓘ |
| hasMemberType |
elliptical galaxies
ⓘ
irregular galaxies ⓘ lenticular galaxies ⓘ spiral galaxies ⓘ |
| hasMorphology | irregular ⓘ |
| hasNotableFeature |
evidence of cluster assembly in progress
ⓘ
high rate of star formation in many member galaxies ⓘ numerous blue spiral galaxies ⓘ |
| hasProperty |
clumpy substructure
ⓘ
dynamically young ⓘ not fully virialized ⓘ |
| hasRightAscension | approximately 16h 05m ⓘ |
| hasSubstructure | multiple galaxy clumps ⓘ |
| hasXRayEmission | weak compared to rich relaxed clusters ⓘ |
| inGalacticHemisphere | northern sky ⓘ |
| locatedInConstellation | Hercules NERFINISHED ⓘ |
| memberOf | Hercules Supercluster NERFINISHED ⓘ |
| observedIn |
X-ray wavelengths
ⓘ
optical wavelengths ⓘ |
| partOf | local universe ⓘ |
| redshift | 0.036 ⓘ |
| richIn |
interacting galaxies
ⓘ
spiral galaxies ⓘ |
| shows |
ongoing galaxy mergers
ⓘ
strong galaxy–galaxy tidal interactions ⓘ |
| usedAs |
example of dynamically young cluster environment
ⓘ
laboratory for studying galaxy evolution in clusters ⓘ |
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: Hercules Cluster (Abell 2151) Description of subject: Hercules Cluster (Abell 2151) is a nearby, irregularly shaped galaxy cluster rich in spiral galaxies and active interactions, located in the constellation Hercules.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.