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gptkbp:instanceOf
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gptkb:stellar_classification
|
|
gptkbp:alsoKnownAs
|
gptkb:LBV
|
|
gptkbp:associatedWith
|
Nebulae
|
|
gptkbp:brightnessChange
|
Up to 2 magnitudes
|
|
gptkbp:color
|
Blue
|
|
gptkbp:diameter
|
Up to several hundred solar radii
|
|
gptkbp:discoveredBy
|
gptkb:Hubble_and_Sandage
|
|
gptkbp:endState
|
Supernova or Wolf-Rayet star
|
|
gptkbp:evolutionaryStage
|
Post-main-sequence
|
|
gptkbp:firstDescribed
|
1953
|
|
gptkbp:foundIn
|
gptkb:Milky_Way
gptkb:Large_Magellanic_Cloud
gptkb:Small_Magellanic_Cloud
|
|
gptkbp:heliumLines
|
Present
|
|
gptkbp:hydrogenLines
|
Strong emission
|
|
gptkbp:instability
|
Caused by high luminosity
|
|
gptkbp:lifespan
|
Short (few million years)
|
|
gptkbp:location
|
Massive star regions
|
|
gptkbp:luminosity
|
Very high
|
|
gptkbp:mass
|
20–120 solar masses
|
|
gptkbp:massLoss
|
High
|
|
gptkbp:metalLines
|
Present
|
|
gptkbp:notableExample
|
gptkb:P_Cygni
gptkb:AG_Carinae
gptkb:Eta_Carinae
|
|
gptkbp:observedBy
|
Space and ground telescopes
|
|
gptkbp:outburst
|
Giant eruptions
|
|
gptkbp:spectralType
|
O or B
|
|
gptkbp:surfaceGravity
|
Low
|
|
gptkbp:temperature
|
10,000–25,000 K
|
|
gptkbp:variant
|
Irregular
S Doradus variable
|
|
gptkbp:windVelocity
|
Hundreds of km/s
|
|
gptkbp:bfsParent
|
gptkb:LBV
|
|
gptkbp:bfsLayer
|
7
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Luminous Blue Variable
|