SAO 113271

E557731

SAO 113271 is the Smithsonian Astrophysical Observatory (SAO) Star Catalog designation for the red supergiant star Betelgeuse in the constellation Orion.

All labels observed (1)

Label Occurrences
SAO 113271 canonical 2

How this entity was disambiguated

Statements (49)

Predicate Object
instanceOf catalog identifier
star
stellar designation
apparentMagnitudeV 0.0 to 1.6
associatedWith red supergiant star
bayerDesignation Alpha Orionis
catalog Smithsonian Astrophysical Observatory Star Catalog
colorIndexBMinusV about +1.85
constellation Orion
correspondsTo Betelgeuse
declinationEpochJ2000 +07° 24′ 25.4″
distanceFromEarth_ly about 550 to 650 light-years
distanceFromEarth_pc about 170 to 200 parsecs
effectiveTemperature_K about 3500
evolutionaryStage red supergiant phase
futureEvolution core-collapse supernova progenitor
galacticPopulation Population I star
hasProperName Betelgeuse
hasSAOIdentifier SAO 113271
hemisphereVisibility both hemispheres
identifies Betelgeuse
isBrightStar true
isEntryIn SAO Star Catalog
linked to: SAO catalogue
isNakedEyeVisible true
locatedIn Milky Way
Orion OB1 association
Orion constellation region
linked to: Orion constellation
luminosity_solar about 100000
luminosityClass Iab
mass_solar about 15 to 20
meanApparentMagnitudeV about 0.5
notableEvent experienced a major dimming event in 2019–2020
otherDesignation ADS 4075 A
Alpha Orionis
BD+07 1055
Betelgeuse
FK5 224
GC 7450
HD 39801
HIP 27989
HR 2061
WDS J05552+0724A
α Orionis
linked to: Alpha Orionis
radius_solar about 700 to 1000
rightAscensionEpochJ2000 05h 55m 10.3053s
spectralClass M1–M2
spectralType M-type
variableStarDesignation Betelgeuse
variableType semiregular variable star

How these facts were elicited

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

Betelgeuse catalogIdentifier SAO 113271
HR 2061 catalogueDesignation SAO 113271