ACO 400
E1554213
UNEXPLORED
ACO 400 is a galaxy cluster in the constellation Cetus, notable for hosting the radio galaxy 3C 75 with its pair of supermassive black holes.
All labels observed (1)
| Label | Occurrences |
|---|---|
| ACO 400 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T22756976 — 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: ACO 400 Context triple: [Abell 400, hasAlternativeName, ACO 400]
-
A.
ACO 1060
ACO 1060 is a nearby, rich galaxy cluster in the constellation Hydra, notable for its dense population of galaxies and frequent use in studies of large-scale cosmic structure.
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B.
ACO
ACO is the commonly used abbreviation for Allied Command Operations, one of NATO’s two strategic military commands responsible for planning and executing alliance operations.
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C.
ACO
ACO (Automobile Club de l’Ouest) is a French motorsport organization best known as the creator and promoter of the 24 Hours of Le Mans and other major endurance racing events.
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D.
ACO 3627
ACO 3627 is a massive galaxy cluster in the nearby universe, notable as one of the dominant structures in the Great Attractor region that strongly influences the motion of surrounding galaxies.
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E.
ACO 262
ACO 262 is a relatively nearby galaxy cluster in the constellation Andromeda, notable as part of the Perseus–Pisces 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: ACO 400 Target entity description: ACO 400 is a galaxy cluster in the constellation Cetus, notable for hosting the radio galaxy 3C 75 with its pair of supermassive black holes.
-
A.
ACO 1060
ACO 1060 is a nearby, rich galaxy cluster in the constellation Hydra, notable for its dense population of galaxies and frequent use in studies of large-scale cosmic structure.
-
B.
ACO
ACO is the commonly used abbreviation for Allied Command Operations, one of NATO’s two strategic military commands responsible for planning and executing alliance operations.
-
C.
ACO
ACO (Automobile Club de l’Ouest) is a French motorsport organization best known as the creator and promoter of the 24 Hours of Le Mans and other major endurance racing events.
-
D.
ACO 3627
ACO 3627 is a massive galaxy cluster in the nearby universe, notable as one of the dominant structures in the Great Attractor region that strongly influences the motion of surrounding galaxies.
-
E.
ACO 262
ACO 262 is a relatively nearby galaxy cluster in the constellation Andromeda, notable as part of the Perseus–Pisces supercluster.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.