FK5 168

GPTKB entity

Statements (51)
Predicate Object
gptkbp:instanceOf gptkb:star
gptkbp:age ~8-10 million years
gptkbp:alternativeName gptkb:Betelgeuse
gptkb:HD_35468
gptkbp:apparentMagnitude 0.42
gptkbp:catalogue gptkb:HIP
gptkb:BD
gptkb:SAO
gptkb:GCVS
HD
HR
FK5
gptkbp:colorIndexB-V +1.85
+2.07
gptkbp:constellation gptkb:Orion
gptkbp:coreFusion helium burning
gptkbp:declination +07° 24′ 25.4″
gptkbp:diameter ~887 solar radii
gptkbp:discoveredBy ancient astronomers
gptkbp:distanceFromEarth ~642.5 light years
gptkbp:eclipticLatitude -9.4°
83.8°
gptkbp:galacticLatitude -8.2°
201.1°
gptkbp:hasCompanion no known companion
gptkbp:hasInfraredExcess yes
gptkbp:heliumContent high
https://www.w3.org/2000/01/rdf-schema#label FK5 168
gptkbp:hydrogenContent low
gptkbp:luminosity ~126,000 times Sun
gptkbp:mass ~16.5 solar masses
gptkbp:metallicity [Fe/H] = -0.15
gptkbp:notableEvent expected to become a supernova
gptkbp:notableFor red supergiant
brightest star in Orion after Rigel
one of the largest visible stars
gptkbp:parallax 5.07 mas
gptkbp:partOf gptkb:Orion_constellation
gptkbp:properMotionRA 24.95 mas/yr
9.56 mas/yr
gptkbp:radialVelocity +21.91 km/s
gptkbp:rightAscension 05h 55m 10.3053s
gptkbp:shape irregular (due to pulsations)
gptkbp:spectralType M1-2 Ia-Iab
gptkbp:temperature ~3,500 K
gptkbp:variableStar semiregular variable
gptkbp:visibleToNakedEye yes
gptkbp:bfsParent gptkb:Beta_Orionis
gptkb:HD_34085
gptkb:Beta_Tauri
gptkbp:bfsLayer 7