Cygnus X-1
E1229115
UNEXPLORED
Cygnus X-1 is one of the strongest known X-ray sources in the sky and the first widely accepted stellar-mass black hole candidate, located in the constellation Cygnus.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Cygnus X-1 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T16692521 — 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: Cygnus X-1 Context triple: [Cygnus, containsStarSystem, Cygnus X-1]
-
A.
Scorpius X-1
Scorpius X-1 is a bright low-mass X-ray binary system and one of the strongest persistent X-ray sources in the sky, located in the constellation Scorpius.
-
B.
Baade X
Baade X is a minor lunar impact crater located near the larger crater Baade on the Moon’s far side.
-
C.
3C 273
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.
-
D.
Theta Carinae
Theta Carinae is a bright, massive B-type star in the southern constellation Carina, notable as one of the prominent stars in the Carina OB association.
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E.
Messier 87
Messier 87 is a giant elliptical galaxy in the Virgo Cluster, notable for its supermassive black hole and powerful relativistic jet.
- 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: Cygnus X-1 Target entity description: Cygnus X-1 is one of the strongest known X-ray sources in the sky and the first widely accepted stellar-mass black hole candidate, located in the constellation Cygnus.
-
A.
Scorpius X-1
Scorpius X-1 is a bright low-mass X-ray binary system and one of the strongest persistent X-ray sources in the sky, located in the constellation Scorpius.
-
B.
Baade X
Baade X is a minor lunar impact crater located near the larger crater Baade on the Moon’s far side.
-
C.
3C 273
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.
-
D.
Theta Carinae
Theta Carinae is a bright, massive B-type star in the southern constellation Carina, notable as one of the prominent stars in the Carina OB association.
-
E.
Messier 87
Messier 87 is a giant elliptical galaxy in the Virgo Cluster, notable for its supermassive black hole and powerful relativistic jet.
- F. None of above. chosen
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Cygnus
subject surface form:
Cygnus