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gptkbp:instance_of
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gptkb:Ninjutsu
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gptkbp:bfsLayer
|
4
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gptkbp:bfsParent
|
gptkb:Jocelyn_Bell_Burnell
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gptkbp:age
|
about 1.5 million years
|
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gptkbp:constellation
|
gptkb:Cassiopeia
none known
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gptkbp:discovered_by
|
gptkb:D._R._Lorimer
the fastest known pulsar at the time of discovery
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gptkbp:distance
|
about 3,200 light years
|
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gptkbp:elevation
|
about 30 degrees
|
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gptkbp:field
|
about 10^12 Gauss
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gptkbp:frequency
|
about 641 Hz
|
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gptkbp:has_luminosity
|
about 0.1 m Jy
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gptkbp:historical_period
|
about 1.5 x 10^-19 s/s
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|
https://www.w3.org/2000/01/rdf-schema#label
|
Pulsar PSR B1937+21
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gptkbp:is_observed_in
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multiple radio telescopes
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gptkbp:lighting
|
not detected
|
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gptkbp:mission
|
gptkb:Ninjutsu
|
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gptkbp:name
|
gptkb:B1937+21
|
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gptkbp:number_built
|
gptkb:PSR_B1937+21
|
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gptkbp:orbital_period
|
part of the NANO Grav project
|
|
gptkbp:products
|
J1939+2134
|
|
gptkbp:research
|
radio waves
|
|
gptkbp:roll_rate
|
1.557701 milliseconds
|
|
gptkbp:significance
|
used for testing general relativity
|
|
gptkbp:status
|
not in a binary system
|
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gptkbp:year_created
|
gptkb:1982
|