NGC 2239
E549406
NGC 2239 is an open star cluster located in the constellation Monoceros, often associated with the Rosette Nebula region.
All labels observed (2)
How this entity was disambiguated
This entity first appeared as the object of triple T5775480 — 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: NGC 2239 Context triple: [Monoceros, contains, NGC 2239]
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A.
NGC 2207
NGC 2207 is a large spiral galaxy in the constellation Canis Major, notable for its dramatic gravitational interaction and ongoing collision with the nearby galaxy IC 2163.
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B.
NGC 2360
NGC 2360 is an open star cluster in the constellation Canis Major, notable for its rich population of moderately aged stars.
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C.
NGC 221
NGC 221 is a compact dwarf elliptical galaxy in the Local Group, best known as the bright satellite galaxy M32 orbiting the Andromeda Galaxy.
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D.
NGC 6923
NGC 6923 is a spiral galaxy located in the constellation Microscopium.
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E.
NGC 224
NGC 224 is the Andromeda Galaxy, a massive spiral galaxy and the closest major galactic neighbor to the Milky Way.
- 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: NGC 2239 Target entity description: NGC 2239 is an open star cluster located in the constellation Monoceros, often associated with the Rosette Nebula region.
-
A.
NGC 2207
NGC 2207 is a large spiral galaxy in the constellation Canis Major, notable for its dramatic gravitational interaction and ongoing collision with the nearby galaxy IC 2163.
-
B.
NGC 2360
NGC 2360 is an open star cluster in the constellation Canis Major, notable for its rich population of moderately aged stars.
-
C.
NGC 221
NGC 221 is a compact dwarf elliptical galaxy in the Local Group, best known as the bright satellite galaxy M32 orbiting the Andromeda Galaxy.
-
D.
NGC 6923
NGC 6923 is a spiral galaxy located in the constellation Microscopium.
-
E.
NGC 224
NGC 224 is the Andromeda Galaxy, a massive spiral galaxy and the closest major galactic neighbor to the Milky Way.
- F. None of above. chosen
Statements (32)
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: NGC 2239 Description of subject: NGC 2239 is an open star cluster located in the constellation Monoceros, often associated with the Rosette Nebula region.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: NGC 2239