|
gptkbp:instanceOf
|
Type of star
|
|
gptkbp:alsoKnownAs
|
gptkb:LBV
|
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gptkbp:associatedWith
|
gptkb:OB_associations
Young star clusters
|
|
gptkbp:color
|
Blue
|
|
gptkbp:discoveredBy
|
gptkb:Hubble_and_Sandage
1950s
|
|
gptkbp:distance
|
Several kiloparsecs
|
|
gptkbp:endStage
|
supernova
|
|
gptkbp:evolutionaryLink
|
white dwarf
Supergiant
|
|
gptkbp:evolutionaryStage
|
Post-main-sequence
|
|
gptkbp:hasInfraredExcess
|
Yes
|
|
gptkbp:heliumLines
|
Present
|
|
gptkbp:hostedBy
|
gptkb:Milky_Way
gptkb:Large_Magellanic_Cloud
gptkb:Small_Magellanic_Cloud
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Luminous blue variable
|
|
gptkbp:hydrogenLines
|
Strong emission
|
|
gptkbp:importantFor
|
Key to understanding massive star evolution
|
|
gptkbp:location
|
Massive star-forming regions
|
|
gptkbp:luminosity
|
I
Up to several million times the Sun
|
|
gptkbp:mass
|
20-120 solar masses
|
|
gptkbp:massLoss
|
Very high
|
|
gptkbp:massLossMechanism
|
Stellar wind
|
|
gptkbp:metalLines
|
Present
|
|
gptkbp:nebulae
|
Often surrounded by nebulae
|
|
gptkbp:notableExample
|
gptkb:P_Cygni
gptkb:AG_Carinae
gptkb:Eta_Carinae
gptkb:HR_Carinae
gptkb:S_Doradus
|
|
gptkbp:outburst
|
Giant eruptions
S Doradus variability
|
|
gptkbp:spectralType
|
O
B
|
|
gptkbp:surfaceInstability
|
Yes
|
|
gptkbp:temperature
|
10,000–25,000 K
|
|
gptkbp:variabilityAmplitude
|
Up to 2 magnitudes
|
|
gptkbp:variabilityTimescale
|
Years to decades
|
|
gptkbp:variant
|
Eruptive variable
|
|
gptkbp:bfsParent
|
gptkb:Stars
gptkb:white_dwarf
|
|
gptkbp:bfsLayer
|
5
|