HD 23850
E528144
HD 23850, also known as Sterope I, is a star in the Pleiades open star cluster in the constellation Taurus.
All labels observed (1)
| Label | Occurrences |
|---|---|
| HD 23850 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5541437 — 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: HD 23850 Context triple: [Sterope I, hasAlternativeName, HD 23850]
-
A.
HD 23850
HD 23850 is a massive, young, hot star located in the Perseus constellation and belonging to the Perseus OB2 stellar association.
-
B.
HD 23480
HD 23480 is a bright B-type main-sequence star in the constellation Taurus, visible to the naked eye and cataloged under multiple stellar designations including 23 Tauri.
-
C.
HD 23180
HD 23180 is a hot, massive early-type star located in the Perseus constellation and is notable as a prominent member of the Perseus OB2 stellar association.
-
D.
HD 23338
HD 23338, also known as Taygeta, is a bright blue-white star in the Pleiades open star cluster in the constellation Taurus.
-
E.
HD 23630
HD 23630 is a hot, massive early-type star located in the Perseus constellation and belonging to 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: HD 23850 Target entity description: HD 23850, also known as Sterope I, is a star in the Pleiades open star cluster in the constellation Taurus.
-
A.
HD 23850
HD 23850 is a massive, young, hot star located in the Perseus constellation and belonging to the Perseus OB2 stellar association.
-
B.
HD 23480
HD 23480 is a bright B-type main-sequence star in the constellation Taurus, visible to the naked eye and cataloged under multiple stellar designations including 23 Tauri.
-
C.
HD 23180
HD 23180 is a hot, massive early-type star located in the Perseus constellation and is notable as a prominent member of the Perseus OB2 stellar association.
-
D.
HD 23338
HD 23338, also known as Taygeta, is a bright blue-white star in the Pleiades open star cluster in the constellation Taurus.
-
E.
HD 23630
HD 23630 is a hot, massive early-type star located in the Perseus constellation and belonging to the young Perseus OB2 stellar association.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
Pleiades member
ⓘ
main-sequence star ⓘ star ⓘ |
| ageMillionYears | about 100 ⓘ |
| alsoKnownAs |
19 Tauri
NERFINISHED
ⓘ
Asterope I NERFINISHED ⓘ Sterope I NERFINISHED ⓘ |
| angularSeparationFrom | about 2.5 arcminutes from Sterope II ⓘ |
| apparentMagnitudeV | 5.76 ⓘ |
| belongsTo | Milky Way NERFINISHED ⓘ |
| catalogIn |
Bright Star Catalogue
NERFINISHED
ⓘ
Henry Draper Catalogue NERFINISHED ⓘ Hipparcos Catalogue NERFINISHED ⓘ |
| clusterCoreMember | no, located toward cluster outskirts ⓘ |
| colorIndexBminusV | about −0.06 ⓘ |
| declination | +24° 07′ (J2000) approximate ⓘ |
| distanceFromEarthLightYears | about 440 ⓘ |
| distanceFromEarthParsecs | about 135 ⓘ |
| effectiveTemperatureKelvin | about 12000 ⓘ |
| galacticPopulation | thin disk star ⓘ |
| hasCompanion | visual companion Sterope II (21 Tauri) NERFINISHED ⓘ |
| hasConstellation | Taurus NERFINISHED ⓘ |
| hasDesignation |
HD 23850
NERFINISHED
ⓘ
HIP 17702 NERFINISHED ⓘ HR 1178 NERFINISHED ⓘ |
| hasProperMotion | yes ⓘ |
| hasRadialVelocity | about +6 km/s ⓘ |
| locatedIn | Pleiades region ⓘ |
| luminositySolarLuminosities | about 100 ⓘ |
| massSolarMasses | about 3 ⓘ |
| memberOf |
Melotte 22
NERFINISHED
ⓘ
Pleiades open cluster NERFINISHED ⓘ |
| metallicityRelativeToSun | near solar ⓘ |
| observedIn | optical wavelengths ⓘ |
| parallaxMilliarcseconds | about 7.4 ⓘ |
| partOfAsterism | Pleiades (Seven Sisters) NERFINISHED ⓘ |
| properMotionAlignedWith | Pleiades cluster motion ⓘ |
| radiusSolarRadii | about 3 ⓘ |
| rightAscension | 03h 47m (J2000) approximate ⓘ |
| rotationalVelocityKmPerSec | about 140 ⓘ |
| spectralClass | B8V ⓘ |
| 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: HD 23850 Description of subject: HD 23850, 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 surface form:
Sterope I