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gptkbp:instanceOf
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gptkb:astronomer
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gptkbp:brightnessIncrease
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up to 100,000 times
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gptkbp:category
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gptkb:variable_star
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gptkbp:cause
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thermonuclear explosion on the surface of a white dwarf
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gptkbp:defines
|
a sudden, dramatic increase in brightness of a star
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gptkbp:discoveredBy
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ancient astronomers
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gptkbp:duration
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few weeks to months
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gptkbp:etymology
|
from Latin 'nova', meaning 'new'
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gptkbp:example
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gptkb:Nova_Aquilae_1918
gptkb:Nova_Cygni_1975
gptkb:Nova_Persei_1901
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gptkbp:frequency
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about 30-60 per year in the Milky Way
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gptkbp:notToBeConfusedWith
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gptkb:supernova
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gptkbp:observedBy
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optical telescopes
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gptkbp:occurredIn
|
binary star systems
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gptkbp:powerSource
|
accretion of hydrogen onto white dwarf
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gptkbp:recordedAt
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Chinese astronomers, 2nd century AD
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gptkbp:relatedTo
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gptkb:white_dwarf
gptkb:supernova
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gptkbp:remnants
|
expanding shell of gas
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gptkbp:bfsParent
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gptkb:Silver_Surfer
gptkb:WGBH-TV
gptkb:IBM_Watson
gptkb:ECW
gptkb:James_Randi
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gptkbp:bfsLayer
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5
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https://www.w3.org/2000/01/rdf-schema#label
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Nova
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