Sh2-298
E1456061
UNEXPLORED
Sh2-298 is an emission nebula in the constellation Canis Major, popularly known as Thor’s Helmet for its distinctive helmet-like shape surrounding a massive Wolf–Rayet star.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sh2-298 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T20892251 — 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: Sh2-298 Context triple: [Thor’s Helmet Nebula, alsoKnownAs, Sh2-298]
-
A.
Sh2-25
Sh2-25 is a compact emission nebula in the constellation Sagittarius, cataloged in the Sharpless catalog of H II regions.
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B.
Sh2-202
Sh2-202 is a large, faint emission nebula and H II region located in the constellation Camelopardalis.
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C.
Sh2-205
Sh2-205 is a faint emission nebula cataloged in the Sharpless catalog, located in the constellation Camelopardalis.
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D.
Sh2-184
Sh2-184, commonly known as the Pacman Nebula, is an emission nebula in the constellation Cassiopeia notable for its distinctive shape resembling the classic video game character.
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E.
Sh2-117
Sh2-117 is a large emission nebula in the constellation Cygnus, better known as the North America Nebula (NGC 7000), notable for its distinctive continent-like shape and active star-forming regions.
- 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: Sh2-298 Target entity description: Sh2-298 is an emission nebula in the constellation Canis Major, popularly known as Thor’s Helmet for its distinctive helmet-like shape surrounding a massive Wolf–Rayet star.
-
A.
Sh2-25
Sh2-25 is a compact emission nebula in the constellation Sagittarius, cataloged in the Sharpless catalog of H II regions.
-
B.
Sh2-202
Sh2-202 is a large, faint emission nebula and H II region located in the constellation Camelopardalis.
-
C.
Sh2-205
Sh2-205 is a faint emission nebula cataloged in the Sharpless catalog, located in the constellation Camelopardalis.
-
D.
Sh2-184
Sh2-184, commonly known as the Pacman Nebula, is an emission nebula in the constellation Cassiopeia notable for its distinctive shape resembling the classic video game character.
-
E.
Sh2-117
Sh2-117 is a large emission nebula in the constellation Cygnus, better known as the North America Nebula (NGC 7000), notable for its distinctive continent-like shape and active star-forming regions.
- F. None of above. chosen
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.