HR 2061

E557729

HR 2061 is the Bright Star Catalogue designation for Betelgeuse, the prominent red supergiant star in the constellation Orion.

All labels observed (1)

Label Occurrences
HR 2061 canonical 2

How this entity was disambiguated

Statements (47)

Predicate Object
instanceOf Bright Star Catalogue object ⓘ
star ⓘ
alsoKnownAs Alpha Orionis ⓘ
Betelgeuse ⓘ
apparentMagnitudeV about 0.5 ⓘ
variable ⓘ
bayerDesignation Alpha Orionis ⓘ
belongsTo Milky Way ⓘ
catalogueDesignation HD 39801 ⓘ
HIP 27989 ⓘ
HR 2061 ⓘ
SAO 113271 ⓘ
colorIndexBMinusV about +1.85 ⓘ
declination_J2000 +07° 24′ 25″ ⓘ
distanceFromEarth_ly about 550 ⓘ
between 500 and 700 light-years ⓘ
effectiveTemperature_K about 3500 ⓘ
evolutionaryStage late-stage massive star ⓘ
red supergiant phase ⓘ
galacticPopulation thin disk ⓘ
hasColor red ⓘ
hasExtendedAtmosphere true ⓘ
hasMassLoss strong stellar wind and mass loss ⓘ
hasNotableEvent experienced significant dimming in 2019–2020 ⓘ
hemisphere celestial northern hemisphere ⓘ
isNakedEyeVisible true ⓘ
isOneOf brightest stars in the night sky ⓘ
largest stars visible to the naked eye ⓘ
isPartOfAsterism Orion constellation pattern ⓘ
isProminentIn winter sky of the Northern Hemisphere ⓘ
locatedInConstellation Orion ⓘ
luminosity_solarLuminosities about 100000 ⓘ
between 60000 and 140000 ⓘ
mass_solarMasses about 15 ⓘ
between 10 and 20 ⓘ
metallicity_FeH approximately solar ⓘ
parallax_mas about 4.5 ⓘ
positionInConstellation right shoulder of Orion ⓘ
properMotionDec_masPerYr about 10 ⓘ
properMotionRA_masPerYr about 24 ⓘ
radialVelocity_kmPerS about +21 ⓘ
radius_solarRadii about 900 ⓘ
between 700 and 1000 ⓘ
rightAscension_J2000 05h 55m 10.3s ⓘ
spectralType M1–M2 Ia–ab ⓘ
variableType semiregular variable star ⓘ
willEndAs core-collapse supernova ⓘ

How these facts were elicited

Referenced by (2)

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

Betelgeuse → catalogIdentifier → HR 2061 ⓘ
HD 39801 → catalogNumber → HR 2061 ⓘ