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gptkbp:instance_of
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gptkb:Apache_Pulsar
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gptkbp:age
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about 1.5 million years
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gptkbp:associated_supernova_remnant
|
none known
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gptkbp:binary_status
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not in a binary system
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gptkbp:constellation
|
gptkb:Cassiopeia
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gptkbp:discovered_by
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gptkb:D._R._Lorimer
the fastest known pulsar at the time of discovery
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gptkbp:discovery_year
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gptkb:1982
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gptkbp:distance_from_earth
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about 3,200 light years
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gptkbp:elevation
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about 30 degrees
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gptkbp:has_field
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about 10^12 Gauss
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gptkbp:has_luminosity
|
about 0.1 m Jy
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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:perihelion
|
gptkb:Apache_Pulsar
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gptkbp:period_derivative
|
about 1.5 x 10^-19 s/s
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gptkbp:pulsar_catalog
|
J1939+2134
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gptkbp:pulsar_catalog_number
|
gptkb:PSR_B1937+21
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gptkbp:pulsar_frequency
|
about 641 Hz
|
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gptkbp:pulsar_name
|
gptkb:B1937+21
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gptkbp:pulsar_timing_array
|
part of the NANOGrav project
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gptkbp:research
|
radio waves
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gptkbp:roll_rate
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1.557701 milliseconds
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gptkbp:significance
|
used for testing general relativity
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gptkbp:bfsParent
|
gptkb:Jocelyn_Bell_Burnell
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gptkbp:bfsLayer
|
5
|