HD 278942
E469617
HD 278942 is a massive, young, early-type star located in the Perseus constellation and associated with the Perseus OB2 stellar association.
All labels observed (1)
| Label | Occurrences |
|---|---|
| HD 278942 canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T4617651 — 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 278942 Context triple: [Perseus OB2 association, hasMember, HD 278942]
-
A.
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.
-
B.
HD 24970
HD 24970 is a star located in the Perseus constellation and identified as a member of the Perseus OB2 stellar association.
-
C.
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.
-
D.
HD 24912
HD 24912, also known as ξ Persei, is a bright, massive O-type star in the constellation Perseus and a prominent member of the Perseus OB2 stellar association.
-
E.
HD 24760
HD 24760 is a hot, massive early-type star in the constellation Perseus, notable as a member of 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 278942 Target entity description: HD 278942 is a massive, young, early-type star located in the Perseus constellation and associated with the Perseus OB2 stellar association.
-
A.
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.
-
B.
HD 24970
HD 24970 is a star located in the Perseus constellation and identified as a member of the Perseus OB2 stellar association.
-
C.
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.
-
D.
HD 24912
HD 24912, also known as ξ Persei, is a bright, massive O-type star in the constellation Perseus and a prominent member of the Perseus OB2 stellar association.
-
E.
HD 24760
HD 24760 is a hot, massive early-type star in the constellation Perseus, notable as a member of the young Perseus OB2 stellar association.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
early-type star
ⓘ
massive star ⓘ star ⓘ young star ⓘ |
| ageCharacteristic | young ⓘ |
| associatedWith |
IC 348 region
ⓘ
linked to:
IC 348
Perseus molecular cloud ⓘ
linked to:
Perseus molecular cloud complex
interstellar dust ⓘ reflection nebulae ⓘ |
| astrophysicalRole |
illuminates surrounding nebula
ⓘ
traces recent star formation ⓘ |
| belongsTo |
Perseus OB2 subgroup of massive stars
ⓘ
linked to:
Perseus OB2 association
|
| catalog | Henry Draper Catalogue ⓘ |
| catalogIdentifier | HD 278942 ⓘ |
| celestialHemisphere | Northern sky ⓘ |
| environment |
OB association environment
ⓘ
star-forming region ⓘ |
| galacticPopulation | OB association member ⓘ |
| hasProperName | HD 278942 ⓘ |
| locatedInConstellation | Perseus ⓘ |
| massCharacteristic | massive ⓘ |
| memberOf | Perseus OB2 association ⓘ |
| observedIn |
infrared wavelengths
ⓘ
optical wavelengths ⓘ |
| partOf | Milky Way ⓘ |
| spectralType | early-type ⓘ |
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 278942 Description of subject: HD 278942 is a massive, young, early-type star located in the Perseus constellation and associated with the Perseus OB2 stellar association.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.