Omicron2 Canis Majoris
E506489
Omicron2 Canis Majoris is a luminous red supergiant star located in the constellation Canis Major.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Omicron2 Canis Majoris canonical | 1 |
| Omicron^1 Canis Majoris | 1 |
| Omicron^2 Canis Majoris | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5259955 — 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: Omicron2 Canis Majoris Context triple: [Canis Major, contains, Omicron2 Canis Majoris]
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A.
Alpha Ophiuchi
Alpha Ophiuchi, traditionally known as Rasalhague, is the brightest star in the constellation Ophiuchus and a rapidly rotating A-type subgiant located relatively close to Earth.
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B.
Rho Tucanae
Rho Tucanae is a star located in the southern constellation Tucana.
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C.
Mu Serpentis
Mu Serpentis is a relatively bright A-type main-sequence star located in the tail region of the constellation Serpens.
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D.
Epsilon Scuti
Epsilon Scuti is a relatively faint star located in the small southern constellation Scutum.
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E.
Zeta Tucanae
Zeta Tucanae is a main-sequence F-type star located in the southern constellation Tucana, visible to the naked eye from dark-sky locations.
- 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: Omicron2 Canis Majoris Target entity description: Omicron2 Canis Majoris is a luminous red supergiant star located in the constellation Canis Major.
-
A.
Alpha Ophiuchi
Alpha Ophiuchi, traditionally known as Rasalhague, is the brightest star in the constellation Ophiuchus and a rapidly rotating A-type subgiant located relatively close to Earth.
-
B.
Rho Tucanae
Rho Tucanae is a star located in the southern constellation Tucana.
-
C.
Mu Serpentis
Mu Serpentis is a relatively bright A-type main-sequence star located in the tail region of the constellation Serpens.
-
D.
Epsilon Scuti
Epsilon Scuti is a relatively faint star located in the small southern constellation Scutum.
-
E.
Zeta Tucanae
Zeta Tucanae is a main-sequence F-type star located in the southern constellation Tucana, visible to the naked eye from dark-sky locations.
- F. None of above. chosen
Statements (42)
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: Omicron2 Canis Majoris Description of subject: Omicron2 Canis Majoris is a luminous red supergiant star located in the constellation Canis Major.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.