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gptkbp:instanceOf
|
supernova
binary star system
|
|
gptkbp:apparentMagnitude
|
10.8 (quiescence)
2.0 (outburst)
|
|
gptkbp:catalogueNumber
|
gptkb:BD+25_3020
gptkb:HD_143454
gptkb:HR_5959
gptkb:SAO_84162
gptkb:HIP_78401
|
|
gptkbp:component
|
white dwarf
red giant star
|
|
gptkbp:constellationAbbreviation
|
gptkb:CrB
|
|
gptkbp:declination
|
+25° 55′ 12.6″
|
|
gptkbp:discoveredBy
|
gptkb:John_Birmingham
|
|
gptkbp:distanceFromEarth
|
~2,000 light-years
|
|
gptkbp:epoch
|
gptkb:J2000
|
|
gptkbp:expectedNextOutburst
|
2020s or 2030s (predicted)
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
T Coronae Borealis
|
|
gptkbp:lastOutburst
|
1946
|
|
gptkbp:locatedIn
|
constellation Corona Borealis
|
|
gptkbp:luminosity_(red_giant)
|
~1200 solar luminosities
|
|
gptkbp:mass_(red_giant)
|
~1.12 solar masses
|
|
gptkbp:mass_(white_dwarf)
|
~1.37 solar masses
|
|
gptkbp:notableFor
|
recurrent nova eruptions
|
|
gptkbp:orbitType
|
227.6 days
|
|
gptkbp:otherName
|
gptkb:T_CrB
|
|
gptkbp:outburstYear
|
1866
1946
|
|
gptkbp:rightAscension
|
15h 59m 30.16s
|
|
gptkbp:spectralType
|
M3III (red giant)
white dwarf (companion)
|
|
gptkbp:variableStar
|
gptkb:T_CrB
supernova
|
|
gptkbp:bfsParent
|
gptkb:Corona_Borealis
|
|
gptkbp:bfsLayer
|
7
|