Beta Coronae Borealis

URI: https://gptkb.org/entity/Beta_Coronae_Borealis
GPTKB entity
Statements (28)
Predicate Object
gptkbp:instanceOf gptkb:star
binary star system
gptkbp:apparentMagnitude 3.66
gptkbp:BayerDesignation gptkb:Beta_Coronae_Borealis
gptkbp:constellation gptkb:Corona_Borealis
gptkbp:declination +29° 06′ 21″
gptkbp:diameter 3.4 solar radii
gptkbp:discoveredBy gptkb:William_Herschel
gptkbp:discoveredIn 1781
gptkbp:distanceFromEarth 114 light years
gptkbp:FlamsteedDesignation gptkb:8_Coronae_Borealis
gptkbp:hasCompanion gptkb:Beta_Coronae_Borealis_B
https://www.w3.org/2000/01/rdf-schema#label Beta Coronae Borealis
gptkbp:locatedIn gptkb:Corona_Borealis
gptkbp:luminosity 25 times solar luminosity
gptkbp:mass 2.1 solar masses
gptkbp:metallicity +0.09
gptkbp:orbitType 10.5 years
gptkbp:otherName gptkb:Nusakan
gptkbp:parallax 28.67 mas
gptkbp:rightAscension 15h 27m 49.8s
gptkbp:rotationPeriod 33 km/s
gptkbp:SIMBADID gptkb:HD_137909
gptkbp:spectralType F2III
gptkbp:temperature 6,980 K
gptkbp:variableStar gptkb:Alpha2_Canum_Venaticorum_variable
gptkbp:bfsParent gptkb:Corona_Borealis
gptkbp:bfsLayer 7