HR 2061
E557729
HR 2061 is the Bright Star Catalogue designation for Betelgeuse, the prominent red supergiant star in the constellation Orion.
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Bright Star Catalogue object
ⓘ
star ⓘ |
| alsoKnownAs |
Alpha Orionis
NERFINISHED
ⓘ
Betelgeuse NERFINISHED ⓘ |
| apparentMagnitudeV |
about 0.5
ⓘ
variable ⓘ |
| bayerDesignation | Alpha Orionis NERFINISHED ⓘ |
| belongsTo | Milky Way NERFINISHED ⓘ |
| catalogueDesignation |
HD 39801
NERFINISHED
ⓘ
HIP 27989 NERFINISHED ⓘ HR 2061 ⓘ SAO 113271 NERFINISHED ⓘ |
| 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 NERFINISHED ⓘ |
| 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 ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.