21 Scorpii
E1390378
UNEXPLORED
21 Scorpii is the Flamsteed designation for Antares, the bright red supergiant star that is the alpha star of the constellation Scorpius.
All labels observed (1)
| Label | Occurrences |
|---|---|
| 21 Scorpii canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T19686136 — 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: 21 Scorpii Context triple: [Antares, flamsteedDesignation, 21 Scorpii]
-
A.
20 Sagittarii
20 Sagittarii is a star in the constellation Sagittarius, cataloged as HD 168454.
-
B.
21 Tauri
21 Tauri, also known as Sterope I, is a relatively faint star in the Pleiades open star cluster in the constellation Taurus.
-
C.
Rho Lupi
Rho Lupi is a star located in the southern constellation Lupus.
-
D.
Kappa Lupi
Kappa Lupi is a bright multiple star system in the southern constellation of Lupus, visible to the naked eye and used as a reference point in the night sky.
-
E.
9 Sagittarii
9 Sagittarii is a massive, luminous O-type star system in the constellation Sagittarius that plays a key role in energizing and illuminating the surrounding interstellar gas.
- 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: 21 Scorpii Target entity description: 21 Scorpii is the Flamsteed designation for Antares, the bright red supergiant star that is the alpha star of the constellation Scorpius.
-
A.
20 Sagittarii
20 Sagittarii is a star in the constellation Sagittarius, cataloged as HD 168454.
-
B.
21 Tauri
21 Tauri, also known as Sterope I, is a relatively faint star in the Pleiades open star cluster in the constellation Taurus.
-
C.
Rho Lupi
Rho Lupi is a star located in the southern constellation Lupus.
-
D.
Kappa Lupi
Kappa Lupi is a bright multiple star system in the southern constellation of Lupus, visible to the naked eye and used as a reference point in the night sky.
-
E.
9 Sagittarii
9 Sagittarii is a massive, luminous O-type star system in the constellation Sagittarius that plays a key role in energizing and illuminating the surrounding interstellar gas.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.