3C 273
E1208868
UNEXPLORED
3C 273 is a bright, nearby quasar in the constellation Virgo and one of the first quasars ever identified, making it a landmark object in extragalactic astronomy.
All labels observed (1)
| Label | Occurrences |
|---|---|
| 3C 273 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T16359400 — 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: 3C 273 Context triple: [3C catalogue of radio sources, notableEntry, 3C 273]
-
A.
3C 84
3C 84 is a powerful radio-loud active galactic nucleus associated with the central galaxy NGC 1275 in the Perseus Cluster, notable for its strong jets and variable emission across the electromagnetic spectrum.
-
B.
Messier 87
Messier 87 is a giant elliptical galaxy in the Virgo Cluster, notable for its supermassive black hole and powerful relativistic jet.
-
C.
Baade X
Baade X is a minor lunar impact crater located near the larger crater Baade on the Moon’s far side.
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D.
Seyfert 2
Seyfert 2 is a type of active galactic nucleus characterized by strong narrow emission lines and an obscured central engine, typically hidden by dust and gas.
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E.
NGC 3372
NGC 3372 is a massive, bright star-forming nebula in the Carina constellation, famous for housing the unstable supergiant star Eta Carinae and extensive regions of ionized gas and dust.
- 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: 3C 273 Target entity description: 3C 273 is a bright, nearby quasar in the constellation Virgo and one of the first quasars ever identified, making it a landmark object in extragalactic astronomy.
-
A.
3C 84
3C 84 is a powerful radio-loud active galactic nucleus associated with the central galaxy NGC 1275 in the Perseus Cluster, notable for its strong jets and variable emission across the electromagnetic spectrum.
-
B.
Messier 87
Messier 87 is a giant elliptical galaxy in the Virgo Cluster, notable for its supermassive black hole and powerful relativistic jet.
-
C.
Baade X
Baade X is a minor lunar impact crater located near the larger crater Baade on the Moon’s far side.
-
D.
Seyfert 2
Seyfert 2 is a type of active galactic nucleus characterized by strong narrow emission lines and an obscured central engine, typically hidden by dust and gas.
-
E.
NGC 3372
NGC 3372 is a massive, bright star-forming nebula in the Carina constellation, famous for housing the unstable supergiant star Eta Carinae and extensive regions of ionized gas and dust.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.