Beta Cephei
E538669
Beta Cephei is a class of hot, massive B-type pulsating variable stars whose brightness variations are driven by pressure and gravity mode oscillations.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Beta Cephei canonical | 6 |
| Beta Cephei variable | 5 |
| Beta Cephei (star) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5637001 — 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: Beta Cephei Context triple: [Beta Crucis, hasVariabilityType, Beta Cephei]
-
A.
Beta Scuti
Beta Scuti is a prominent giant star in the constellation Scutum, notable as one of its brightest members.
-
B.
Delta Scuti
Delta Scuti is a variable star in the constellation Scutum, serving as the prototype of the Delta Scuti class of short-period pulsating stars.
-
C.
UY Scuti
UY Scuti is a 2021 studio album by Nigerian rapper and singer Olamide that blends Afrobeats, hip-hop, and pop influences.
-
D.
UY Scuti
UY Scuti is an extremely large red supergiant star, among the biggest known in the Milky Way, located in the constellation Scutum.
-
E.
Gamma Microscopii
Gamma Microscopii is a yellow giant star in the southern constellation Microscopium, notable as its most luminous visible member.
- 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: Beta Cephei Target entity description: Beta Cephei is a class of hot, massive B-type pulsating variable stars whose brightness variations are driven by pressure and gravity mode oscillations.
-
A.
Beta Scuti
Beta Scuti is a prominent giant star in the constellation Scutum, notable as one of its brightest members.
-
B.
Delta Scuti
Delta Scuti is a variable star in the constellation Scutum, serving as the prototype of the Delta Scuti class of short-period pulsating stars.
-
C.
UY Scuti
UY Scuti is a 2021 studio album by Nigerian rapper and singer Olamide that blends Afrobeats, hip-hop, and pop influences.
-
D.
UY Scuti
UY Scuti is an extremely large red supergiant star, among the biggest known in the Milky Way, located in the constellation Scutum.
-
E.
Gamma Microscopii
Gamma Microscopii is a yellow giant star in the southern constellation Microscopium, notable as its most luminous visible member.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
B-type variable star
ⓘ
class of variable stars ⓘ pulsating variable star type ⓘ |
| belongsToSpectralClass | B-type ⓘ |
| hasAbbreviation | BCEP ⓘ |
| hasAlternativeName |
Beta Cep-type variable
ⓘ
Beta Cephei variable ⓘ
linked to:
Beta Cephei
β Cep-type variable ⓘ β Cephei variable ⓘ |
| hasDiscoveryCentury | 20th century ⓘ |
| hasEnvironment |
OB associations
ⓘ
linked to:
OB association
open clusters ⓘ young stellar populations ⓘ |
| hasLightVariationCause |
non-radial pulsations
ⓘ
radial pulsations ⓘ |
| hasPhotometricBandVariability |
optical
ⓘ
ultraviolet ⓘ |
| hasPrototype |
Beta Cephei (star)
ⓘ
linked to:
Beta Cephei
|
| hasPulsationDriver |
gravity mode oscillations
ⓘ
pressure mode oscillations ⓘ |
| hasPulsationMechanism | kappa mechanism ⓘ |
| hasPulsationModes |
low-order g-modes
ⓘ
low-order p-modes ⓘ |
| hasPulsationPeriodRange | 0.1–0.6 days ⓘ |
| hasTypicalAgeRange | tens of millions of years ⓘ |
| hasTypicalAmplitudeRange | a few hundredths of a magnitude ⓘ |
| hasTypicalEffectiveTemperatureRange | 18,000–30,000 K ⓘ |
| hasTypicalLocationInHRDiagram | near the main-sequence turnoff of massive stars ⓘ |
| hasTypicalLuminosityClass |
III
ⓘ
IV ⓘ V ⓘ |
| hasTypicalMassRange | 7–20 solar masses ⓘ |
| hasTypicalMetallicity | near-solar ⓘ |
| hasTypicalRadialVelocityVariations | tens of km/s ⓘ |
| hasTypicalSpectralType |
B0
ⓘ
B1 ⓘ B2 ⓘ |
| hasTypicalSurfaceGravity | high ⓘ |
| hasVariabilityTimescale | short-period ⓘ |
| hasVariabilityType | pulsating ⓘ |
| isCataloguedIn | General Catalogue of Variable Stars ⓘ |
| isLocatedIn | upper main sequence ⓘ |
| isNamedAfter | star Beta Cephei ⓘ |
| isObservedIn |
Magellanic Clouds
ⓘ
Milky Way ⓘ |
| isUsedFor |
asteroseismology of massive stars
ⓘ
studying internal structure of B-type stars ⓘ testing stellar opacity calculations ⓘ |
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: Beta Cephei Description of subject: Beta Cephei is a class of hot, massive B-type pulsating variable stars whose brightness variations are driven by pressure and gravity mode oscillations.
Referenced by (12)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Beta Cephei
linked to: Beta Cephei
linked to: Beta Cephei
linked to: Beta Cephei
linked to: Beta Cephei
linked to: Beta Cephei