Virgo Cluster
E121000
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.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Virgo Cluster canonical | 5 |
| M86 subcluster | 1 |
| M87 subcluster | 1 |
| Virgo Cluster core | 1 |
| Virgo Galaxy Cluster | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1014566 — 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: Virgo Cluster Context triple: [Laniakea Supercluster, contains, Virgo Cluster]
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
Messier 8
Messier 8, also known as the Lagoon Nebula, is a large, bright emission nebula and active star-forming region visible in the constellation Sagittarius.
-
E.
Andromeda subgroup
The Andromeda subgroup is the collection of galaxies gravitationally bound to and dominated by the Andromeda Galaxy (M31) within the Local Group.
- 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: Virgo Cluster Target entity description: 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.
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
Messier 8
Messier 8, also known as the Lagoon Nebula, is a large, bright emission nebula and active star-forming region visible in the constellation Sagittarius.
-
E.
Andromeda subgroup
The Andromeda subgroup is the collection of galaxies gravitationally bound to and dominated by the Andromeda Galaxy (M31) within the Local Group.
- F. None of above. chosen
Statements (97)
| Predicate | Object |
|---|---|
| instanceOf |
Virgo Supercluster core
ⓘ
galaxy cluster ⓘ gravitationally bound system ⓘ |
| alsoKnownAs |
Virgo Cluster
ⓘ
surface form:
Virgo Galaxy Cluster
|
| centralBlackHoleMassEstimate | about 6.5×10^9 solar masses ⓘ |
| contains |
intracluster globular clusters
ⓘ
intracluster planetary nebulae ⓘ |
| containsGalaxy |
M100
ⓘ
M49 ⓘ M58 ⓘ M59 ⓘ M60 ⓘ M84 ⓘ M86 ⓘ M88 ⓘ M89 ⓘ M90 ⓘ M91 ⓘ M98 ⓘ M99 ⓘ NGC 4216 ⓘ NGC 4374 ⓘ NGC 4382 ⓘ NGC 4387 ⓘ NGC 4388 ⓘ NGC 4406 ⓘ NGC 4435 ⓘ NGC 4438 ⓘ NGC 4459 ⓘ NGC 4461 ⓘ NGC 4473 ⓘ NGC 4477 ⓘ NGC 4478 ⓘ NGC 4486 ⓘ NGC 4501 ⓘ NGC 4526 ⓘ NGC 4527 ⓘ NGC 4535 ⓘ NGC 4536 ⓘ NGC 4548 ⓘ NGC 4567 ⓘ NGC 4567 ⓘ
surface form:
NGC 4568
NGC 4569 ⓘ NGC 4571 ⓘ NGC 4579 ⓘ NGC 4584 ⓘ NGC 4606 ⓘ NGC 4639 ⓘ NGC 4647 ⓘ NGC 4649 ⓘ NGC 4654 ⓘ NGC 4660 ⓘ NGC 4689 ⓘ |
| containsGalaxyType |
dwarf elliptical galaxies
ⓘ
dwarf spheroidal galaxies ⓘ elliptical galaxies ⓘ irregular galaxies ⓘ lenticular galaxies ⓘ spiral galaxies ⓘ |
| containsHotGas | intracluster medium ⓘ |
| containsRegion |
Virgo Cluster
self-linksurface differs
ⓘ
surface form:
Virgo Cluster core
Virgo Cluster outskirts ⓘ |
| declination | +12° 43′ ⓘ |
| diameterEstimate |
about 10 million light-years
ⓘ
about 3 megaparsecs ⓘ |
| discoveryCentury | 18th century ⓘ |
| distanceFromEarth |
about 16.5 megaparsecs
ⓘ
about 54 million light-years ⓘ |
| dominantGalaxy |
Messier 87
ⓘ
surface form:
M87
Messier 87 ⓘ |
| emits | X-rays ⓘ |
| gravitationallyInfluences | Local Group ⓘ |
| hasCatalogDesignation |
ACO 1526
ⓘ
Abell 1526 ⓘ |
| hasCentralSupermassiveBlackHoleIn |
Messier 87
ⓘ
surface form:
M87
|
| hasHighGalaxyDensity | true ⓘ |
| hasIntraclusterLight | true ⓘ |
| hasIrregularMorphology | true ⓘ |
| hasSubstructure |
M49 subcluster
ⓘ
Virgo Cluster self-linksurface differs ⓘ
surface form:
M86 subcluster
Virgo Cluster self-linksurface differs ⓘ
surface form:
M87 subcluster
|
| hasVelocityDispersion | about 700–800 km/s ⓘ |
| isDynamicallyYoung | true ⓘ |
| isGravitationalCenterOf | Virgo Supercluster ⓘ |
| isNearestRichClusterTo | Local Group ⓘ |
| isPartOfLargeScaleStructure | Laniakea Supercluster ⓘ |
| isReferenceClusterFor |
distance scale calibration
ⓘ
environmental effects on galaxies ⓘ galaxy evolution studies ⓘ |
| locatedIn | Virgo constellation ⓘ |
| massEstimate |
about 1.2×10^15 solar masses
ⓘ
of order 10^15 solar masses ⓘ |
| memberCountEstimate |
over 1300 galaxies
ⓘ
up to about 2000 galaxies ⓘ |
| partOf | Virgo Supercluster ⓘ |
| redshift | 0.0036 ⓘ |
| rightAscension | 12h 27m ⓘ |
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: Virgo Cluster Description of subject: 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.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Virgo Galaxy Cluster
this entity surface form:
M87 subcluster
this entity surface form:
M86 subcluster
this entity surface form:
Virgo Cluster core