HIP 20889
E581540
HIP 20889 is the Hipparcos catalog designation for 87 Tauri, a star located in the constellation Taurus.
All labels observed (1)
| Label | Occurrences |
|---|---|
| HIP 20889 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T6287153 — 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 20889 Context triple: [87 Tauri, hasHipparcosNumber, HIP 20889]
-
A.
HIP 25930
HIP 25930 is the Hipparcos catalog designation for Mintaka, a bright multiple star system that forms the westernmost star in Orion’s Belt.
-
B.
HIP 25336
HIP 25336 is the Hipparcos catalog designation for Bellatrix, a prominent blue giant star in the constellation Orion.
-
C.
HIP 21421
HIP 21421 is the Hipparcos catalog designation for Aldebaran, the bright orange giant star that marks the eye of the constellation Taurus.
-
D.
HIP 17608
HIP 17608 is a star in the constellation Taurus, more commonly known as 23 Tauri, and is cataloged in the Hipparcos star catalog.
-
E.
HIP 89931
HIP 89931 is the Hipparcos catalog designation for Kaus Australis, the brightest star in the constellation Sagittarius.
- 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 20889 Target entity description: HIP 20889 is the Hipparcos catalog designation for 87 Tauri, a star located in the constellation Taurus.
-
A.
HIP 25930
HIP 25930 is the Hipparcos catalog designation for Mintaka, a bright multiple star system that forms the westernmost star in Orion’s Belt.
-
B.
HIP 25336
HIP 25336 is the Hipparcos catalog designation for Bellatrix, a prominent blue giant star in the constellation Orion.
-
C.
HIP 21421
HIP 21421 is the Hipparcos catalog designation for Aldebaran, the bright orange giant star that marks the eye of the constellation Taurus.
-
D.
HIP 17608
HIP 17608 is a star in the constellation Taurus, more commonly known as 23 Tauri, and is cataloged in the Hipparcos star catalog.
-
E.
HIP 89931
HIP 89931 is the Hipparcos catalog designation for Kaus Australis, the brightest star in the constellation Sagittarius.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
Hipparcos catalog object
ⓘ
star ⓘ |
| alsoKnownAs |
87 Tauri
ⓘ
HD 28307 ⓘ HR 1330 ⓘ |
| apparentMagnitudeV | 5.50 ⓘ |
| catalog |
Bright Star Catalogue
ⓘ
Henry Draper Catalogue ⓘ Hipparcos ⓘ
linked to:
Hipparcos satellite
|
| catalogDesignation | HIP 20889 ⓘ |
| colorIndexBminusV | 0.93 ⓘ |
| constellation | Taurus ⓘ |
| declination | +17° 32′ 33″ ⓘ |
| distanceFromEarth |
about 155 light-years
ⓘ
about 47.5 parsecs ⓘ |
| equatorialCoordinateSystem |
ICRS
ⓘ
linked to:
International Celestial Reference System
|
| evolutionaryStage | evolved star ⓘ |
| galacticPopulation | thin disk ⓘ |
| hostConstellation | Taurus ⓘ |
| locatedIn |
Milky Way
ⓘ
Orion Arm ⓘ |
| luminosityClass | giant star ⓘ |
| observedBy | Hipparcos satellite ⓘ |
| parallax | about 21 mas ⓘ |
| properMotion | measurable ⓘ |
| radialVelocity | measurable ⓘ |
| rightAscension | 04h 28m 37s ⓘ |
| spectralType | G8III ⓘ |
| variableStarStatus | not known to be variable ⓘ |
| visibleToNakedEye | yes ⓘ |
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 20889 Description of subject: HIP 20889 is the Hipparcos catalog designation for 87 Tauri, a star located in the constellation Taurus.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.