BD+23 455
E528147
BD+23 455, also known as Sterope I, is a star in the Pleiades open star cluster in the constellation Taurus.
All labels observed (1)
| Label | Occurrences |
|---|---|
| BD+23 455 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5541440 — 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: BD+23 455 Context triple: [Sterope I, hasAlternativeName, BD+23 455]
-
A.
BD+23 550
BD+23 550 is a star in the constellation Taurus, better known as Taygeta, one of the prominent members of the Pleiades star cluster.
-
B.
BD−34 12223
BD−34 12223 is a stellar catalog designation corresponding to Kaus Australis, the brightest star in the constellation Sagittarius.
-
C.
BD+30 540
BD+30 540 is a young, massive star located in the Perseus OB2 stellar association, a nearby group of hot, luminous OB-type stars in the constellation Perseus.
-
D.
23 Tauri
23 Tauri is a star in the constellation Taurus, cataloged as part of the Pleiades star cluster.
-
E.
HD 24534
HD 24534 is a hot, massive early-type star located in the Perseus constellation and associated with the young Perseus OB2 stellar association.
- 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: BD+23 455 Target entity description: BD+23 455, also known as Sterope I, is a star in the Pleiades open star cluster in the constellation Taurus.
-
A.
BD+23 550
BD+23 550 is a star in the constellation Taurus, better known as Taygeta, one of the prominent members of the Pleiades star cluster.
-
B.
BD−34 12223
BD−34 12223 is a stellar catalog designation corresponding to Kaus Australis, the brightest star in the constellation Sagittarius.
-
C.
BD+30 540
BD+30 540 is a young, massive star located in the Perseus OB2 stellar association, a nearby group of hot, luminous OB-type stars in the constellation Perseus.
-
D.
23 Tauri
23 Tauri is a star in the constellation Taurus, cataloged as part of the Pleiades star cluster.
-
E.
HD 24534
HD 24534 is a hot, massive early-type star located in the Perseus constellation and associated with the young Perseus OB2 stellar association.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
main-sequence star
ⓘ
star ⓘ |
| age | about 100 million years ⓘ |
| alsoKnownAs |
21 Tauri
ⓘ
Asterope I ⓘ
linked to:
Asterope
HD 23480 ⓘ HIP 17608 ⓘ HR 1156 ⓘ Sterope I ⓘ
linked to:
Sterope
|
| apparentMagnitudeV | 5.76 ⓘ |
| associatedWith | reflection nebula around Pleiades ⓘ |
| belongsTo |
Milky Way galaxy
ⓘ
linked to:
Milky Way
|
| belongsToAsterism |
Pleiades (Seven Sisters)
ⓘ
linked to:
Pleiades
|
| catalog |
Bonner Durchmusterung
ⓘ
Bright Star Catalogue ⓘ Henry Draper Catalogue ⓘ Hipparcos Catalogue ⓘ |
| clusterType | open cluster ⓘ |
| colorIndexB−V | −0.06 ⓘ |
| constellation | Taurus ⓘ |
| declination | +23° 57′ 29″ ⓘ |
| distanceFromEarth |
approximately 135 parsecs
ⓘ
approximately 440 light-years ⓘ |
| effectiveTemperature | about 12000 K ⓘ |
| equatorialCoordinateSystem |
ICRS
ⓘ
linked to:
International Celestial Reference System
|
| evolutionaryStage | hydrogen-burning main sequence ⓘ |
| galacticPopulation | thin disk ⓘ |
| hemisphereVisibility | northern hemisphere ⓘ |
| locatedIn | Pleiades moving group ⓘ |
| luminosity | about 70 times solar luminosity ⓘ |
| mass | about 3 solar masses ⓘ |
| memberOf |
Pleiades star cluster
ⓘ
linked to:
Pleiades
|
| metallicity | near solar ⓘ |
| mythologicalAssociation | Pleiades sisters in Greek mythology ⓘ |
| observedIn |
optical wavelengths
ⓘ
ultraviolet wavelengths ⓘ |
| parallax | 7.4 mas ⓘ |
| properMotionDec | −45 mas/yr ⓘ |
| properMotionRA | +20 mas/yr ⓘ |
| radialVelocity | about +6 km/s ⓘ |
| radius | about 3 solar radii ⓘ |
| rightAscension | 03h 45m 54s ⓘ |
| rotation | rapid rotator ⓘ |
| spectralClass | B-type ⓘ |
| spectralType | B8V ⓘ |
| variableStarStatus | not known to be strongly 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: BD+23 455 Description of subject: BD+23 455, also known as Sterope I, is a star in the Pleiades open star cluster in the constellation Taurus.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
star Sterope I