Delta Scuti
E489380
A-type star
Delta Scuti variable
main-sequence star
prototype star
pulsating variable star
variable star
Delta Scuti is a variable star in the constellation Scutum, serving as the prototype of the Delta Scuti class of short-period pulsating stars.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Delta Scuti canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4943667 — 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: Delta Scuti Context triple: [Scutum, contains, Delta Scuti]
-
A.
UY Scuti
UY Scuti is a 2021 studio album by Nigerian rapper and singer Olamide that blends Afrobeats, hip-hop, and pop influences.
-
B.
UY Scuti
UY Scuti is an extremely large red supergiant star, among the biggest known in the Milky Way, located in the constellation Scutum.
-
C.
R Scuti
R Scuti is a luminous, pulsating yellow supergiant star in the constellation Scutum, known as one of the brightest and most studied RV Tauri variable stars.
-
D.
Beta Scuti
Beta Scuti is a prominent giant star in the constellation Scutum, notable as one of its brightest members.
-
E.
Alpha Scuti
Alpha Scuti is a relatively bright giant star in the constellation Scutum, visible to the naked eye from Earth.
- 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: Delta Scuti Target entity description: Delta Scuti is a variable star in the constellation Scutum, serving as the prototype of the Delta Scuti class of short-period pulsating stars.
-
A.
UY Scuti
UY Scuti is a 2021 studio album by Nigerian rapper and singer Olamide that blends Afrobeats, hip-hop, and pop influences.
-
B.
UY Scuti
UY Scuti is an extremely large red supergiant star, among the biggest known in the Milky Way, located in the constellation Scutum.
-
C.
R Scuti
R Scuti is a luminous, pulsating yellow supergiant star in the constellation Scutum, known as one of the brightest and most studied RV Tauri variable stars.
-
D.
Beta Scuti
Beta Scuti is a prominent giant star in the constellation Scutum, notable as one of its brightest members.
-
E.
Alpha Scuti
Alpha Scuti is a relatively bright giant star in the constellation Scutum, visible to the naked eye from Earth.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
A-type star
ⓘ
Delta Scuti variable ⓘ main-sequence star ⓘ prototype star ⓘ pulsating variable star ⓘ variable star ⓘ |
| age_Myr | ~730 ⓘ |
| apparentMagnitudeV | 4.71 ⓘ |
| BayerDesignation | δ Scuti NERFINISHED ⓘ |
| BDNumber | BD−09 4984 NERFINISHED ⓘ |
| belongsTo | Milky Way NERFINISHED ⓘ |
| constellation | Scutum NERFINISHED ⓘ |
| declination | −09° 03′ 09″ ⓘ |
| distanceFromEarth_ly | ~199 ⓘ |
| distanceFromEarth_pc | ~61 ⓘ |
| effectiveTemperature_K | ~7000 ⓘ |
| evolutionaryStage | slightly evolved off the main sequence ⓘ |
| FlamsteedDesignation | δ Scuti NERFINISHED ⓘ |
| galacticPopulation | thin disk ⓘ |
| hasEnglishName | Delta Scuti NERFINISHED ⓘ |
| hasPhotometricVariability | yes ⓘ |
| HDNumber | HD 172748 NERFINISHED ⓘ |
| hemisphere | southern celestial hemisphere ⓘ |
| HIPNumber | HIP 91726 NERFINISHED ⓘ |
| hostGalaxy | Milky Way NERFINISHED ⓘ |
| HRNumber | HR 6879 NERFINISHED ⓘ |
| isNakedEyeVisible | yes ⓘ |
| isPrototypeOfClassUsedIn | asteroseismology studies ⓘ |
| luminosity_solar | ~38 ⓘ |
| mass_solar | ~1.8 ⓘ |
| metallicity_FeH | ~0.0 ⓘ |
| parallax_mas | ~16.4 ⓘ |
| prototypeOf |
Delta Scuti class of short-period pulsating stars
NERFINISHED
ⓘ
Delta Scuti variables NERFINISHED ⓘ |
| pulsationMode | radial and non-radial ⓘ |
| pulsationPeriod_days | ~0.1938 ⓘ |
| pulsationPeriod_hours | ~4.65 ⓘ |
| radialVelocity_kmPerSec | ~15 ⓘ |
| radius_solar | ~2.9 ⓘ |
| rightAscension | 18h 42m 16s ⓘ |
| rotationalVelocity_kmPerSec | ~25 ⓘ |
| spectralType | A2III ⓘ |
| variabilityDiscoveryCentury | 20th century ⓘ |
| variableApparentMagnitudeVRange | 4.60–4.79 ⓘ |
| variableType | Delta Scuti NERFINISHED ⓘ |
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: Delta Scuti Description of subject: Delta Scuti is a variable star in the constellation Scutum, serving as the prototype of the Delta Scuti class of short-period pulsating stars.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Scutum