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gptkbp:instanceOf
|
gptkb:star
|
|
gptkbp:apparentMagnitude
|
3.66
|
|
gptkbp:catalogueNumber
|
gptkb:FK5_1342
gptkb:HR_5747
gptkb:BD+28_2562
gptkb:HD_137909
ADS 9494
GC 20913
HIP 75695
SAO 83993
WDS J15278+2836
|
|
gptkbp:component
|
Nusakan A
Nusakan B
|
|
gptkbp:constellation
|
gptkb:Corona_Borealis
|
|
gptkbp:declination
|
+28° 36′ 27″
|
|
gptkbp:diameter
|
2.5 solar radii
|
|
gptkbp:discoveredBy
|
gptkb:William_Herschel
|
|
gptkbp:discoveredIn
|
1781
|
|
gptkbp:distanceFromEarth
|
114 light years
|
|
gptkbp:hasCompanion
|
Nusakan B
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Nusakan
|
|
gptkbp:IAUApprovedName
|
gptkb:Nusakan
|
|
gptkbp:luminosity
|
25 times Sun
|
|
gptkbp:mass
|
2.1 solar masses
|
|
gptkbp:metallicity
|
+0.10
|
|
gptkbp:orbitType
|
10.5 years
|
|
gptkbp:otherName
|
gptkb:Beta_Coronae_Borealis
|
|
gptkbp:parallax
|
28.57 mas
|
|
gptkbp:properMotionRA
|
-66.63 mas/yr
-98.16 mas/yr
|
|
gptkbp:rightAscension
|
15h 27m 49.8s
|
|
gptkbp:rotationPeriod
|
108 km/s
|
|
gptkbp:spectralType
|
A9IV
F2V
|
|
gptkbp:stellarSystem
|
binary star system
|
|
gptkbp:temperature
|
7,000 K
|
|
gptkbp:variableStar
|
gptkb:Alpha2_Canum_Venaticorum_variable
|
|
gptkbp:visibleToNakedEye
|
true
|
|
gptkbp:bfsParent
|
gptkb:Beta_Coronae_Borealis
gptkb:Coronae_Borealis
gptkb:Corona_Borealis_constellation
|
|
gptkbp:bfsLayer
|
8
|