Sh 2-45
E1436516
UNEXPLORED
Sh 2-45 is an H II region and emission nebula listed in the Sharpless catalog of Galactic nebulae.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sh 2-45 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T20530391 — 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: Sh 2-45 Context triple: [Sharpless 45, catalogCode, Sh 2-45]
-
A.
Sh 2-25
Sh 2-25 is an emission nebula in the constellation Sagittarius, better known as part of the bright star-forming region Messier 8 (the Lagoon Nebula).
-
B.
Sh 2-275
Sh 2-275 is a large, circular emission nebula in the constellation Monoceros, notable for its active star-forming region and striking rosette-like appearance.
-
C.
Sh 2-279
Sh 2-279 is a bright emission and reflection nebula complex in the constellation Orion, commonly known as the Running Man Nebula and located near the famous Orion Nebula.
-
D.
Sh 2-190
Sh 2-190 is an emission nebula in the Sharpless catalog, better known as the North America Nebula in the constellation Cygnus.
-
E.
Sh 2-277
Sh 2-277, better known as the Flame Nebula, is a bright emission nebula in the constellation Orion associated with the Orion Belt star Alnitak.
- 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: Sh 2-45 Target entity description: Sh 2-45 is an H II region and emission nebula listed in the Sharpless catalog of Galactic nebulae.
-
A.
Sh 2-25
Sh 2-25 is an emission nebula in the constellation Sagittarius, better known as part of the bright star-forming region Messier 8 (the Lagoon Nebula).
-
B.
Sh 2-275
Sh 2-275 is a large, circular emission nebula in the constellation Monoceros, notable for its active star-forming region and striking rosette-like appearance.
-
C.
Sh 2-279
Sh 2-279 is a bright emission and reflection nebula complex in the constellation Orion, commonly known as the Running Man Nebula and located near the famous Orion Nebula.
-
D.
Sh 2-190
Sh 2-190 is an emission nebula in the Sharpless catalog, better known as the North America Nebula in the constellation Cygnus.
-
E.
Sh 2-277
Sh 2-277, better known as the Flame Nebula, is a bright emission nebula in the constellation Orion associated with the Orion Belt star Alnitak.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.