Perseus Cluster
E553749
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.
All labels observed (3)
| Label | Occurrences |
|---|---|
| NGC 1275 | 1 |
| Perseus Cluster canonical | 1 |
| Perseus Cluster of galaxies | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5846074 — 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: Perseus Cluster Context triple: [Perseus–Pisces Supercluster, contains, Perseus Cluster]
-
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.
Perseus–Pisces Supercluster
The Perseus–Pisces Supercluster is a massive, elongated concentration of galaxy clusters stretching hundreds of millions of light-years across space and forming one of the most prominent large-scale structures in the nearby universe.
-
C.
Shapley Supercluster
The Shapley Supercluster is one of the most massive known concentrations of galaxies in the nearby universe, exerting a significant gravitational influence on surrounding cosmic structures.
-
D.
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.
-
E.
Hydra–Centaurus Supercluster
The Hydra–Centaurus Supercluster is a massive nearby concentration of galaxy clusters that forms one of the dominant structures in our cosmic neighborhood and serves as a major component of the larger Laniakea Supercluster.
- 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: Perseus Cluster Target entity description: 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.
-
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.
Perseus–Pisces Supercluster
The Perseus–Pisces Supercluster is a massive, elongated concentration of galaxy clusters stretching hundreds of millions of light-years across space and forming one of the most prominent large-scale structures in the nearby universe.
-
C.
Shapley Supercluster
The Shapley Supercluster is one of the most massive known concentrations of galaxies in the nearby universe, exerting a significant gravitational influence on surrounding cosmic structures.
-
D.
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.
-
E.
Hydra–Centaurus Supercluster
The Hydra–Centaurus Supercluster is a massive nearby concentration of galaxy clusters that forms one of the dominant structures in our cosmic neighborhood and serves as a major component of the larger Laniakea Supercluster.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical object
ⓘ
galaxy cluster ⓘ |
| alsoKnownAs |
A426
NERFINISHED
ⓘ
Abell 426 NERFINISHED ⓘ |
| centralAGNFeedback | heats intracluster medium ⓘ |
| centralRadioSourceAssociatedWith | NGC 1275 NERFINISHED ⓘ |
| contains |
elliptical galaxies
ⓘ
hundreds of galaxies ⓘ intracluster magnetic fields ⓘ lenticular galaxies ⓘ spiral galaxies ⓘ |
| discoveredBy | Max Wolf NERFINISHED ⓘ |
| discoveryYear | 1902 ⓘ |
| distanceFromEarth |
approximately 240 million light-years
ⓘ
approximately 73 megaparsecs ⓘ |
| dominantGalaxyType | elliptical galaxies ⓘ |
| emits | X-rays ⓘ |
| hasBeenUsedFor |
studies of AGN feedback
ⓘ
studies of dark matter distribution ⓘ studies of intracluster medium physics ⓘ studies of sound waves in hot gas ⓘ |
| hasBrightestClusterGalaxy | NGC 1275 NERFINISHED ⓘ |
| hasCentralActiveGalaxy | NGC 1275 NERFINISHED ⓘ |
| hasCentralRadioSource | Perseus A NERFINISHED ⓘ |
| hasCoolCore | true ⓘ |
| hasGravitationalLensing | weak lensing signatures ⓘ |
| hasIntraclusterMedium | hot X-ray–emitting gas ⓘ |
| hasSubstructure |
Perseus Cluster eastern subcluster
NERFINISHED
ⓘ
Perseus Cluster western subcluster NERFINISHED ⓘ |
| isDominatedBy | NGC 1275 NERFINISHED ⓘ |
| isOneOf |
X-ray brightest galaxy clusters in the sky
ⓘ
nearest rich galaxy clusters ⓘ |
| locatedInConstellation | Perseus NERFINISHED ⓘ |
| mass | on the order of 10^15 solar masses ⓘ |
| memberOfCatalog | Abell catalog of rich clusters of galaxies NERFINISHED ⓘ |
| observedBy |
Chandra X-ray Observatory
NERFINISHED
ⓘ
Einstein Observatory NERFINISHED ⓘ ROSAT NERFINISHED ⓘ XMM-Newton NERFINISHED ⓘ |
| partOf | Perseus–Pisces supercluster region NERFINISHED ⓘ |
| redshift | 0.0179 ⓘ |
| showsPhenomenon |
AGN feedback
ⓘ
X-ray cavities ⓘ acoustic waves in intracluster medium ⓘ cool core ⓘ radio bubbles in intracluster medium ⓘ sloshing cold fronts ⓘ |
| temperatureOfIntraclusterGas | tens of millions of kelvin ⓘ |
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: Perseus Cluster Description of subject: 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.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Perseus Cluster of galaxies
this entity surface form:
NGC 1275