UY Scuti
E481664
UY Scuti is an extremely large red supergiant star, among the biggest known in the Milky Way, located in the constellation Scutum.
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
red supergiant star
ⓘ
star ⓘ variable star ⓘ |
| apparentMagnitudeV | about 8.5 ⓘ |
| belongsTo | Scutum star-forming region NERFINISHED ⓘ |
| catalogDesignation | UY Scuti NERFINISHED ⓘ |
| celestialBodyType | red supergiant ⓘ |
| color | red ⓘ |
| coordinateSystem | equatorial coordinates ⓘ |
| declination | approximately −12° 27′ ⓘ |
| discoveredBy | German astronomers at Bonn Observatory ⓘ |
| discoveryYear | 1860 ⓘ |
| distanceFromEarth |
about 2.9 kiloparsecs
ⓘ
about 9,500 light-years ⓘ |
| evolutionaryStage | late stage massive star ⓘ |
| galacticLatitude | near the Galactic plane ⓘ |
| galacticQuadrant | inner Milky Way ⓘ |
| hasExtendedAtmosphere | yes ⓘ |
| hasPulsations | yes ⓘ |
| hasStrongStellarWind | yes ⓘ |
| hasUncertainParameters |
distance
ⓘ
radius ⓘ |
| heliocentricRadialVelocity | positive (receding from the Sun) ⓘ |
| isAmong | largest known stars by radius ⓘ |
| isNakedEyeVisible | no ⓘ |
| isSingleStar | no confirmed close stellar companion ⓘ |
| isUsedAsExampleOf | extreme stellar size ⓘ |
| likelyFuture | core-collapse supernova ⓘ |
| locatedInConstellation | Scutum NERFINISHED ⓘ |
| locatedInGalaxy | Milky Way NERFINISHED ⓘ |
| luminosity | hundreds of thousands of times the Sun’s luminosity ⓘ |
| luminosityClass | Ia ⓘ |
| mass | several times the mass of the Sun ⓘ |
| observedIn |
infrared wavelengths
ⓘ
optical wavelengths ⓘ |
| originalDesignation | BD−12°5055 NERFINISHED ⓘ |
| partOf | Milky Way disk NERFINISHED ⓘ |
| pulsationEffect | causes variability in brightness ⓘ |
| radius |
on the order of 1,700 solar radii (model-dependent)
ⓘ
over 1,000 times the radius of the Sun ⓘ |
| requiresTelescope | small telescope or binoculars ⓘ |
| rightAscension | approximately 18h 27m ⓘ |
| spectralClass | M4 ⓘ |
| spectralType | M-type ⓘ |
| surfaceTemperature | cool compared to the Sun ⓘ |
| undergoesMassLoss | yes ⓘ |
| variableStarType | semiregular variable ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Scutum