HIP 21421
E1582708
UNEXPLORED
HIP 21421 is a star in the constellation Taurus, known more commonly by its Bayer designation 87 Tauri.
All labels observed (1)
| Label | Occurrences |
|---|---|
| HIP 21421 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T23317839 — 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: HIP 21421 Context triple: [87 Tauri, catalogDesignation, HIP 21421]
-
A.
HIP 21421
HIP 21421 is the Hipparcos catalog designation for Aldebaran, the bright orange giant star that marks the eye of the constellation Taurus.
-
B.
HIP 21421
HIP 21421 is a star listed in the Hipparcos Catalogue, also known by its Bright Star Catalogue designation HR 1457.
-
C.
HIP 21432
HIP 21432 is a star listed in the Hipparcos Catalogue, known as a visual companion to the nearby star HIP 21421.
-
D.
HIP 21393
HIP 21393 is the Hipparcos catalog designation for Alpha Doradus, a bright multiple star system in the southern constellation Dorado.
-
E.
HIP 24436
HIP 24436 is the Hipparcos catalog designation for Beta Orionis, a bright blue supergiant star in the constellation Orion also known as Rigel.
- 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: HIP 21421 Target entity description: HIP 21421 is a star in the constellation Taurus, known more commonly by its Bayer designation 87 Tauri.
-
A.
HIP 21421
HIP 21421 is the Hipparcos catalog designation for Aldebaran, the bright orange giant star that marks the eye of the constellation Taurus.
-
B.
HIP 21421
HIP 21421 is a star listed in the Hipparcos Catalogue, also known by its Bright Star Catalogue designation HR 1457.
-
C.
HIP 21432
HIP 21432 is a star listed in the Hipparcos Catalogue, known as a visual companion to the nearby star HIP 21421.
-
D.
HIP 21393
HIP 21393 is the Hipparcos catalog designation for Alpha Doradus, a bright multiple star system in the southern constellation Dorado.
-
E.
HIP 24436
HIP 24436 is the Hipparcos catalog designation for Beta Orionis, a bright blue supergiant star in the constellation Orion also known as Rigel.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.