Centaurus A/M83 Group
E108043
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.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Centaurus A/M83 Group canonical | 3 |
| Centaurus A | 1 |
| Centaurus A Group and M83 Group complex | 1 |
| Centaurus A subgroup | 1 |
| Centaurus A–M83 complex | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T869199 — 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: Centaurus A/M83 Group Context triple: [Local Group, isNearestNeighborTo, Centaurus A/M83 Group]
-
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.
Andromeda subgroup
The Andromeda subgroup is the collection of galaxies gravitationally bound to and dominated by the Andromeda Galaxy (M31) within the Local Group.
-
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.
Triangulum Galaxy
The Triangulum Galaxy is a nearby spiral galaxy in the Local Group, notable as one of the closest large galaxies to the Milky Way and a companion to the Andromeda Galaxy.
-
E.
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.
- 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: Centaurus A/M83 Group Target entity description: 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.
-
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.
Andromeda subgroup
The Andromeda subgroup is the collection of galaxies gravitationally bound to and dominated by the Andromeda Galaxy (M31) within the Local Group.
-
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.
Triangulum Galaxy
The Triangulum Galaxy is a nearby spiral galaxy in the Local Group, notable as one of the closest large galaxies to the Milky Way and a companion to the Andromeda Galaxy.
-
E.
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.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
galaxy association
ⓘ
galaxy group ⓘ |
| brightestGalaxy |
NGC 5128
ⓘ
surface form:
Centaurus A
Messier 83 ⓘ |
| cataloguedIn | nearby galaxy group catalogues ⓘ |
| containsActiveGalaxy |
NGC 5128
ⓘ
surface form:
Centaurus A
|
| containsGalaxy |
Centaurus A/M83 Group
self-linksurface differs
ⓘ
surface form:
Centaurus A
ESO 324-G024 ⓘ ESO 383-G087 ⓘ Messier 83 ⓘ NGC 4945 ⓘ NGC 5102 ⓘ NGC 5128 ⓘ NGC 5236 ⓘ NGC 5253 ⓘ NGC 5408 ⓘ dwarf elliptical galaxies ⓘ dwarf irregular galaxies ⓘ dwarf spheroidal galaxies ⓘ |
| containsStarburstGalaxy | Messier 83 ⓘ |
| discoveredBy | various observers over 20th century via galaxy redshift surveys ⓘ |
| distanceFromMilkyWay | approximately 4 to 5 megaparsecs ⓘ |
| distanceScaleReferenceFor | local volume distance ladder studies ⓘ |
| environmentType | low-density group environment ⓘ |
| gravitationallyBoundTo | its member galaxies ⓘ |
| hasAlternativeName |
Centaurus A/M83 Group
ⓘ
surface form:
Centaurus A Group and M83 Group complex
Centaurus A/M83 Group ⓘ
surface form:
Centaurus A–M83 complex
|
| hasKinematicCenterApprox | near Centaurus A ⓘ |
| hasMassApprox | on the order of 10^13 solar masses (group scale) ⓘ |
| hasStructure | two main concentrations around Centaurus A and M83 ⓘ |
| hasSubgroup |
Centaurus A/M83 Group
self-linksurface differs
ⓘ
surface form:
Centaurus A subgroup
M83 subgroup ⓘ |
| isDominatedBy |
NGC 5128
ⓘ
surface form:
Centaurus A
Messier 83 ⓘ |
| isNeighborOf |
Local Group
ⓘ
M81 Group ⓘ Sculptor Group ⓘ |
| isOneOf | nearest large galaxy groups beyond the Local Group ⓘ |
| isPartOf |
local supercluster environment
ⓘ
local volume ⓘ nearby galaxy groups ⓘ |
| locatedIn | Centaurus constellation region ⓘ |
| memberCountApprox | several dozen galaxies ⓘ |
| redshift | z ≈ 0.001–0.002 (typical member range) ⓘ |
| studiedFor |
dwarf galaxy population
ⓘ
galaxy evolution in group environments ⓘ large-scale structure in the local universe ⓘ |
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: Centaurus A/M83 Group Description of subject: 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.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Centaurus A
this entity surface form:
Centaurus A subgroup
this entity surface form:
Centaurus A Group and M83 Group complex
this entity surface form:
Centaurus A–M83 complex