variable star UY Scuti
E481663
UY Scuti is an extremely luminous red supergiant and one of the largest known stars in the Milky Way galaxy.
All labels observed (1)
| Label | Occurrences |
|---|---|
| variable star UY Scuti canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4943662 — 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: variable star UY Scuti Context triple: [Scutum, contains, variable star UY Scuti]
-
A.
variable star VY Scuti
Variable star VY Scuti is a highly luminous red supergiant located in the constellation Scutum and is among the largest known stars by radius.
-
B.
variable star R Scuti
R Scuti is a luminous RV Tauri-type pulsating variable star in the constellation Scutum, notable for its large, irregular brightness variations and advanced evolutionary stage.
-
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.
variable star Zeta Scuti
Variable star Zeta Scuti is a pulsating star in the constellation Scutum whose brightness changes over time due to intrinsic stellar variability.
-
E.
Cepheid
Cepheid is a molecular diagnostics company known for its rapid, automated PCR-based testing systems used in clinical and research settings.
- 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: variable star UY Scuti Target entity description: UY Scuti is an extremely luminous red supergiant and one of the largest known stars in the Milky Way galaxy.
-
A.
variable star VY Scuti
Variable star VY Scuti is a highly luminous red supergiant located in the constellation Scutum and is among the largest known stars by radius.
-
B.
variable star R Scuti
R Scuti is a luminous RV Tauri-type pulsating variable star in the constellation Scutum, notable for its large, irregular brightness variations and advanced evolutionary stage.
-
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.
variable star Zeta Scuti
Variable star Zeta Scuti is a pulsating star in the constellation Scutum whose brightness changes over time due to intrinsic stellar variability.
-
E.
Cepheid
Cepheid is a molecular diagnostics company known for its rapid, automated PCR-based testing systems used in clinical and research settings.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
cool supergiant
ⓘ
pulsating variable star ⓘ red supergiant star ⓘ semiregular variable star ⓘ variable star ⓘ |
| hasAlternativeName |
2MASS J18351297−1254228
ⓘ
BD−12°5055 ⓘ TYC 5691-1092-1 ⓘ |
| hasApparentMagnitudeV |
8.0–10.0
ⓘ
8.29 ⓘ |
| hasCircumstellarEnvironment | extended dust envelope ⓘ |
| hasColor | red ⓘ |
| hasDeclination | −12° 30′ (approx) ⓘ |
| hasDiscoveryStatus | identified as variable in 19th century ⓘ |
| hasDistanceFromEarth |
~2.9 kiloparsecs
ⓘ
~9500 light-years ⓘ |
| hasEffectiveTemperature | ~3300 K ⓘ |
| hasEvolutionaryStage | late-stage massive star ⓘ |
| hasGalacticLatitude | ~−0.7° ⓘ |
| hasGalacticLongitude | ~18° ⓘ |
| hasLuminosity | ~3.5×10^5 solar luminosities ⓘ |
| hasLuminosityRange | ~3×10^5–5×10^5 solar luminosities ⓘ |
| hasMass | ~7–10 solar masses (estimated) ⓘ |
| hasObservationMethod |
photometry
ⓘ
spectroscopy ⓘ |
| hasParallax | ~0.4 milliarcseconds (very uncertain) ⓘ |
| hasPeriod | ~740 days ⓘ |
| hasPhotometricBand |
J band
ⓘ
K band ⓘ V band ⓘ |
| hasPhotometricVariabilityAmplitude | ~1–2 magnitudes in V ⓘ |
| hasRadialVelocity | ~+26 km/s (approx) ⓘ |
| hasRadius | ~1700 solar radii ⓘ |
| hasRadiusRange | ~1050–1700 solar radii ⓘ |
| hasRightAscension | 18h 35m (approx) ⓘ |
| hasSecondaryPeriod | ~1700 days ⓘ |
| hasSpectralType |
M4I
ⓘ
M4Ia ⓘ |
| hasSurfaceGravity | very low surface gravity ⓘ |
| hasVariableType | SRc ⓘ |
| isAmong |
largest known stars by radius
ⓘ
most luminous red supergiants in the Milky Way ⓘ |
| isUsedAs | example of extreme stellar radius in astronomy education ⓘ |
| locatedIn |
Milky Way
ⓘ
constellation Scutum ⓘ
linked to:
Scutum constellation
|
| memberOf |
Galactic disk
ⓘ
linked to:
Galactic thin disk
|
| undergoes | significant mass loss ⓘ |
| wasCataloguedIn | Bonner Durchmusterung ⓘ |
| willEndAs | core-collapse supernova (expected) ⓘ |
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: variable star UY Scuti Description of subject: UY Scuti is an extremely luminous red supergiant and one of the largest known stars in the Milky Way galaxy.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Scutum constellation