Perseus–Pisces Supercluster
E129714
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.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Perseus–Pisces Supercluster canonical | 2 |
| Perseus–Pisces filament | 1 |
| Pisces–Perseus Supercluster (approximate large-scale structure region) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1014586 — 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–Pisces Supercluster Context triple: [Laniakea Supercluster, neighboringStructure, Perseus–Pisces Supercluster]
-
A.
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.
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B.
Laniakea Supercluster
Laniakea Supercluster is a vast cosmic structure encompassing the Milky Way and hundreds of thousands of other galaxies, forming one of the largest known galaxy superclusters in the observable universe.
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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.
Centaurus A/M83 Group
The Centaurus A/M83 Group is a nearby galaxy group dominated by the massive galaxies Centaurus A and Messier 83, forming one of the closest large-scale neighbors to our own galactic neighborhood.
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E.
M81 Group
The M81 Group is a nearby collection of galaxies in the constellation Ursa Major, dominated by the large spiral galaxy Messier 81 and known for its interacting members and active star formation.
- 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–Pisces Supercluster Target entity description: 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.
-
A.
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.
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B.
Laniakea Supercluster
Laniakea Supercluster is a vast cosmic structure encompassing the Milky Way and hundreds of thousands of other galaxies, forming one of the largest known galaxy superclusters in the observable universe.
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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.
Centaurus A/M83 Group
The Centaurus A/M83 Group is a nearby galaxy group dominated by the massive galaxies Centaurus A and Messier 83, forming one of the closest large-scale neighbors to our own galactic neighborhood.
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E.
M81 Group
The M81 Group is a nearby collection of galaxies in the constellation Ursa Major, dominated by the large spiral galaxy Messier 81 and known for its interacting members and active star formation.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
galaxy supercluster
ⓘ
large-scale structure of the universe ⓘ |
| alternativeName |
Perseus–Pisces Supercluster
ⓘ
surface form:
Perseus–Pisces filament
|
| connectedTo | neighboring filaments of the cosmic web ⓘ |
| contains |
Abell 262
ⓘ
Abell 347 ⓘ Abell 400 ⓘ Abell 426 ⓘ Abell 539 ⓘ Abell 569 ⓘ Perseus Cluster ⓘ Pisces Cluster ⓘ field galaxies ⓘ galaxy clusters ⓘ galaxy groups ⓘ |
| crossesConstellation |
Andromeda
ⓘ
Aquarius ⓘ
surface form:
Aries
Perseus ⓘ Pisces ⓘ Triangulum ⓘ |
| declinationRange | about +20° to +50° ⓘ |
| discoveredBy | redshift surveys of galaxies ⓘ |
| distanceFromEarth | about 250 million light-years ⓘ |
| hasComponent |
baryonic matter
ⓘ
dark matter ⓘ intergalactic medium ⓘ |
| hasDensityContrast | overdense relative to cosmic mean ⓘ |
| hasOrientation | roughly east–west on the sky ⓘ |
| hasRole | major component of local large-scale structure ⓘ |
| hasShape | elongated ⓘ |
| hasStructure | filamentary ⓘ |
| influences | peculiar velocities of nearby galaxies ⓘ |
| isOneOf | largest known structures in the nearby universe ⓘ |
| length | hundreds of millions of light-years ⓘ |
| lengthApprox | about 300 million light-years ⓘ |
| locatedIn |
nearby universe
ⓘ
observable universe ⓘ |
| name | Perseus–Pisces Supercluster self-link ⓘ |
| observedIn |
X-ray wavelengths
ⓘ
optical wavelengths ⓘ radio wavelengths ⓘ |
| partOf | cosmic web ⓘ |
| redshiftRange | approximately z = 0.016–0.03 ⓘ |
| rightAscensionRange | about 22h to 4h ⓘ |
| separatedBy | Local Void ⓘ |
| separatedFrom |
Virgo Supercluster
ⓘ
surface form:
Local Supercluster
|
| studiedIn |
Two Micron All Sky Survey
ⓘ
surface form:
2MASS Redshift Survey
CfA Redshift Survey ⓘ IRAS redshift survey ⓘ |
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–Pisces Supercluster Description of subject: 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.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Perseus–Pisces filament
subject surface form:
NGC 7318A
this entity surface form:
Pisces–Perseus Supercluster (approximate large-scale structure region)