HD 25539
E463793
HD 25539 is a massive, young, hot star located in the Perseus constellation as part of the Perseus OB2 stellar association.
All labels observed (1)
| Label | Occurrences |
|---|---|
| HD 25539 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4617645 — 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 25539 Context triple: [Perseus OB2 association, hasMember, HD 25539]
-
A.
HD 25443
HD 25443 is a hot, massive young star located in the Perseus constellation as part of the Perseus OB2 stellar association.
-
B.
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.
-
C.
HD 24398
HD 24398, also known as ζ Persei, is a bright blue supergiant star in the constellation Perseus and a prominent member of the Perseus OB2 stellar association.
-
D.
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.
-
E.
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.
- 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 25539 Target entity description: HD 25539 is a massive, young, hot star located in the Perseus constellation as part of the Perseus OB2 stellar association.
-
A.
HD 25443
HD 25443 is a hot, massive young star located in the Perseus constellation as part of the Perseus OB2 stellar association.
-
B.
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.
-
C.
HD 24398
HD 24398, also known as ζ Persei, is a bright blue supergiant star in the constellation Perseus and a prominent member of the Perseus OB2 stellar association.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
B-type star
ⓘ
hot star ⓘ main-sequence star ⓘ massive star ⓘ star ⓘ young star ⓘ |
| age | young ⓘ |
| ageCategory | young ⓘ |
| astrophysicalContext | star-forming region ⓘ |
| belongsTo |
Perseus OB2 subgroup of the Perseus arm
ⓘ
linked to:
Perseus OB2 association
|
| catalog | Henry Draper Catalogue ⓘ |
| celestialObjectType | star ⓘ |
| color | blue ⓘ |
| constellation | Perseus ⓘ |
| effectiveTemperature | high ⓘ |
| evolutionaryStage | early-type main-sequence ⓘ |
| galacticEnvironment | Milky Way ⓘ |
| hasCatalogueIdentifier | HD 25539 ⓘ |
| hostGalaxy |
Milky Way Galaxy
ⓘ
linked to:
Milky Way
|
| locatedIn |
Perseus OB2 stellar association
ⓘ
linked to:
Perseus OB2 association
Perseus constellation ⓘ |
| luminosityClass | main sequence ⓘ |
| mass | high stellar mass ⓘ |
| massCategory | massive ⓘ |
| memberOf |
OB association
ⓘ
Perseus OB2 association ⓘ |
| population | Population I star ⓘ |
| skyLocation | northern celestial hemisphere ⓘ |
| spectralClass | B-type ⓘ |
| temperatureCategory | hot ⓘ |
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 25539 Description of subject: HD 25539 is a massive, young, hot star located in the Perseus constellation as part of the Perseus OB2 stellar association.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.