HIP 21421
E140930
HIP 21421 is the Hipparcos catalog designation for Aldebaran, the bright orange giant star that marks the eye of the constellation Taurus.
All labels observed (1)
| Label | Occurrences |
|---|---|
| HIP 21421 canonical | 6 |
How this entity was disambiguated
This entity first appeared as the object of triple T1236496 — 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: [Aldebaran, hipparcosNumber, HIP 21421]
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A.
Epsilon Sagittarii
Epsilon Sagittarii is a prominent binary star system in the constellation Sagittarius, notable as one of its most luminous and easily visible stars.
-
B.
Ursa Minor Beta
Ursa Minor Beta is a fictional planet in Douglas Adams' "The Hitchhiker's Guide to the Galaxy" series, best known as the corporate home of the Guide itself.
-
C.
Andromeda XIV
Andromeda XIV is a faint dwarf spheroidal galaxy that orbits the Andromeda Galaxy (M31) as one of its satellite galaxies within the Local Group.
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D.
Cygnis Insignis
Cygnis Insignis is the Latin motto of Western Australia, traditionally translated as “Distinguished by the Swan” and referring to the state’s emblematic black swan.
-
E.
Alpha Cancri
Alpha Cancri is a multiple-star system in the constellation Cancer, visible to the naked eye and known for its close stellar pairing.
- 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 the Hipparcos catalog designation for Aldebaran, the bright orange giant star that marks the eye of the constellation Taurus.
-
A.
Epsilon Sagittarii
Epsilon Sagittarii is a prominent binary star system in the constellation Sagittarius, notable as one of its most luminous and easily visible stars.
-
B.
Ursa Minor Beta
Ursa Minor Beta is a fictional planet in Douglas Adams' "The Hitchhiker's Guide to the Galaxy" series, best known as the corporate home of the Guide itself.
-
C.
Andromeda XIV
Andromeda XIV is a faint dwarf spheroidal galaxy that orbits the Andromeda Galaxy (M31) as one of its satellite galaxies within the Local Group.
-
D.
Cygnis Insignis
Cygnis Insignis is the Latin motto of Western Australia, traditionally translated as “Distinguished by the Swan” and referring to the state’s emblematic black swan.
-
E.
Alpha Cancri
Alpha Cancri is a multiple-star system in the constellation Cancer, visible to the naked eye and known for its close stellar pairing.
- F. None of above. chosen
Statements (48)
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: HIP 21421 Description of subject: HIP 21421 is the Hipparcos catalog designation for Aldebaran, the bright orange giant star that marks the eye of the constellation Taurus.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Aldebaran (foreground star, not a member)
subject linked to:
Alpha Tauri (α Tauri)