|
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
|
|
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
|
gptkb: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
|
|
gptkbp:bfsLayer
|
7
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
FK5 168
|