H II region NGC 281
E1396466
UNEXPLORED
H II region NGC 281, also known as the Pacman Nebula, is a prominent star-forming emission nebula in the constellation Cassiopeia characterized by glowing ionized gas, dark dust lanes, and embedded young star clusters.
All labels observed (2)
| Label | Occurrences |
|---|---|
| H II region NGC 281 canonical | 1 |
| NGC 281 H II region | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T19831737 — 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: H II region NGC 281 Context triple: [IC 1590, embeddedIn, H II region NGC 281]
-
A.
NGC 6888
NGC 6888, also known as the Crescent Nebula, is an emission nebula in the constellation Cygnus formed by the powerful stellar winds of a massive Wolf–Rayet star.
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B.
NGC 2183
NGC 2183 is a reflection nebula and star-forming region located in the constellation Monoceros.
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C.
W5 H II region
W5 H II region is a large ionized hydrogen cloud in the Milky Way notable for active star formation and complex nebular structures.
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D.
NGC 7009
NGC 7009, also known as the Saturn Nebula, is a bright planetary nebula notable for its ringed, Saturn-like appearance in the constellation Aquarius.
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E.
NGC 6925
NGC 6925 is a barred spiral galaxy located in the constellation Microscopium.
- 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: H II region NGC 281 Target entity description: H II region NGC 281, also known as the Pacman Nebula, is a prominent star-forming emission nebula in the constellation Cassiopeia characterized by glowing ionized gas, dark dust lanes, and embedded young star clusters.
-
A.
NGC 6888
NGC 6888, also known as the Crescent Nebula, is an emission nebula in the constellation Cygnus formed by the powerful stellar winds of a massive Wolf–Rayet star.
-
B.
NGC 2183
NGC 2183 is a reflection nebula and star-forming region located in the constellation Monoceros.
-
C.
W5 H II region
W5 H II region is a large ionized hydrogen cloud in the Milky Way notable for active star formation and complex nebular structures.
-
D.
NGC 7009
NGC 7009, also known as the Saturn Nebula, is a bright planetary nebula notable for its ringed, Saturn-like appearance in the constellation Aquarius.
-
E.
NGC 6925
NGC 6925 is a barred spiral galaxy located in the constellation Microscopium.
- F. None of above. chosen
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: H II region NGC 281