NGC 1981
E1355584
UNEXPLORED
NGC 1981 is an open star cluster in the constellation Orion, visible to the naked eye and often observed as part of the Orion molecular cloud complex region.
All labels observed (1)
| Label | Occurrences |
|---|---|
| NGC 1981 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T18771503 — 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 1981 Context triple: [NGC 1977, near, NGC 1981]
-
A.
NGC 1952
NGC 1952 is a famous supernova remnant and pulsar wind nebula in the constellation Taurus, known for being the remains of a stellar explosion recorded in 1054 AD.
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B.
NGC 1977
NGC 1977 is a bright reflection nebula and star-forming region located in the constellation Orion, often seen near the famous Orion Nebula as part of the same larger complex.
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C.
NGC 1973
NGC 1973 is a reflection nebula in the constellation Orion, forming part of a bright nebular complex near the famous Orion Nebula.
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D.
NGC 1976
NGC 1976, better known as the Orion Nebula (M42), is a bright, nearby emission nebula in the constellation Orion and one of the most studied stellar nurseries in the night sky.
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E.
NGC 6819
NGC 6819 is a rich open star cluster located in the constellation Cygnus, notable for its intermediate age and importance in studies of stellar evolution.
- 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 1981 Target entity description: NGC 1981 is an open star cluster in the constellation Orion, visible to the naked eye and often observed as part of the Orion molecular cloud complex region.
-
A.
NGC 1952
NGC 1952 is a famous supernova remnant and pulsar wind nebula in the constellation Taurus, known for being the remains of a stellar explosion recorded in 1054 AD.
-
B.
NGC 1977
NGC 1977 is a bright reflection nebula and star-forming region located in the constellation Orion, often seen near the famous Orion Nebula as part of the same larger complex.
-
C.
NGC 1973
NGC 1973 is a reflection nebula in the constellation Orion, forming part of a bright nebular complex near the famous Orion Nebula.
-
D.
NGC 1976
NGC 1976, better known as the Orion Nebula (M42), is a bright, nearby emission nebula in the constellation Orion and one of the most studied stellar nurseries in the night sky.
-
E.
NGC 6819
NGC 6819 is a rich open star cluster located in the constellation Cygnus, notable for its intermediate age and importance in studies of stellar evolution.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.