HD 25940
E469616
HD 25940 is a hot, massive B-type star located in the Perseus constellation and belonging to the young Perseus OB2 stellar association.
All labels observed (1)
| Label | Occurrences |
|---|---|
| HD 25940 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4617647 — 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 25940 Context triple: [Perseus OB2 association, hasMember, HD 25940]
-
A.
HD 25539
HD 25539 is a massive, young, hot star located in the Perseus constellation as part of the Perseus OB2 stellar association.
-
B.
HD 25443
HD 25443 is a hot, massive young star located in the Perseus constellation as part of the Perseus OB2 stellar association.
-
C.
HD 24970
HD 24970 is a star located in the Perseus constellation and identified as a member of the Perseus OB2 stellar association.
-
D.
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.
-
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: HD 25940 Target entity description: HD 25940 is a hot, massive B-type star located in the Perseus constellation and belonging to the young Perseus OB2 stellar association.
-
A.
HD 25539
HD 25539 is a massive, young, hot star located in the Perseus constellation as part of the Perseus OB2 stellar association.
-
B.
HD 25443
HD 25443 is a hot, massive young star located in the Perseus constellation as part of the Perseus OB2 stellar association.
-
C.
HD 24970
HD 24970 is a star located in the Perseus constellation and identified as a member of the Perseus OB2 stellar association.
-
D.
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.
-
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 (46)
| Predicate | Object |
|---|---|
| instanceOf |
B-type star
ⓘ
Be star ⓘ emission-line star ⓘ main-sequence star ⓘ star ⓘ |
| ageMillionYears | approximately 10 ⓘ |
| apparentMagnitudeV | 5.78 ⓘ |
| associatedWith | Perseus OB2 stellar association NERFINISHED ⓘ |
| belongsToGalaxy | Milky Way NERFINISHED ⓘ |
| catalogIdentifier |
HD 25940
ⓘ
HIP 19343 NERFINISHED ⓘ HR 1278 NERFINISHED ⓘ V1150 Tau NERFINISHED ⓘ |
| colorIndexBminusV | -0.06 ⓘ |
| declination | +34° (approximate) ⓘ |
| distanceLightYears | approximately 1100 ⓘ |
| distanceParsecs | approximately 340 ⓘ |
| effectiveTemperatureKelvin | approximately 18000 ⓘ |
| galacticPopulation | thin disk ⓘ |
| hasCircumstellarDisk | gaseous decretion disk ⓘ |
| hasEmissionLines | hydrogen Balmer lines ⓘ |
| hasSpectralFeature |
rapid rotation broadening
ⓘ
strong hydrogen emission ⓘ |
| hasStellarClassification | B-type main-sequence ⓘ |
| hasVariabilityType | Be-type variability ⓘ |
| hemisphereVisibility | northern ⓘ |
| isHotStar | true ⓘ |
| isMassiveStar | true ⓘ |
| isYoungStar | true ⓘ |
| locatedInConstellation | Perseus NERFINISHED ⓘ |
| luminositySolar | approximately 1500 ⓘ |
| massSolar | approximately 7 ⓘ |
| memberOf | Perseus OB2 association NERFINISHED ⓘ |
| observedIn |
optical wavelengths
ⓘ
ultraviolet wavelengths ⓘ |
| parallaxMilliarcseconds | 3.0 ⓘ |
| radialVelocityKms | approximately 14 ⓘ |
| radiusSolar | approximately 4.5 ⓘ |
| rightAscension | 04h 08m (approximate) ⓘ |
| rotationalVelocityKms | approximately 250 ⓘ |
| spectralType | B3Ve ⓘ |
| standardCatalog |
Bright Star Catalogue
NERFINISHED
ⓘ
Henry Draper Catalogue NERFINISHED ⓘ Hipparcos Catalogue NERFINISHED ⓘ |
| variableStarDesignation | V1150 Tauri NERFINISHED ⓘ |
| 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 25940 Description of subject: HD 25940 is a hot, massive B-type star located in the Perseus constellation and belonging to the young Perseus OB2 stellar association.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.