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gptkbp:instanceOf
|
binary star system
microquasar
|
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gptkbp:apparentMagnitude
|
varies (faint in visible light)
|
|
gptkbp:catalogueNumber
|
gptkb:4U_2030+40
gptkb:V1521_Cygni
gptkb:WR_145a
|
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gptkbp:compact
|
neutron star or black hole (uncertain)
|
|
gptkbp:component
|
white dwarf
compact object
|
|
gptkbp:declination
|
+40° 57′ 27.9″
|
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gptkbp:discoveredBy
|
1966
|
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gptkbp:distanceFromEarth
|
approximately 23,000 light-years
|
|
gptkbp:emits
|
gptkb:X-rays
gptkb:gamma_rays
gptkb:radio_waves
|
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gptkbp:hostedBy
|
gptkb:Milky_Way
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Cygnus X-3
|
|
gptkbp:infraredMagnitude
|
K~10.5
|
|
gptkbp:locatedIn
|
gptkb:constellation_Cygnus
|
|
gptkbp:massAccretor
|
compact object
|
|
gptkbp:massDonor
|
white dwarf
|
|
gptkbp:notableFor
|
gamma-ray emission
source of cosmic rays
shortest known orbital period for a high-mass X-ray binary
first microquasar discovered
strong radio outbursts
|
|
gptkbp:orbitType
|
4.8 hours
|
|
gptkbp:otherName
|
gptkb:QSO_J2032+4057
|
|
gptkbp:radioOutbursts
|
up to 20 Jy
|
|
gptkbp:rightAscension
|
20h 32m 25.78s
|
|
gptkbp:studiedBy
|
gptkb:Rossi_X-ray_Timing_Explorer
gptkb:Chandra_X-ray_Observatory
gptkb:Fermi_Gamma-ray_Space_Telescope
|
|
gptkbp:variableType
|
X-ray binary variable
|
|
gptkbp:bfsParent
|
gptkb:Cygnus
|
|
gptkbp:bfsLayer
|
6
|