|
gptkbp:instanceOf
|
gptkb:star
binary star system
|
|
gptkbp:age
|
0.3 billion years
|
|
gptkbp:apparentMagnitude
|
2.23
|
|
gptkbp:BayerDesignation
|
gptkb:Alpha_Coronae_Borealis
|
|
gptkbp:catalogueNumber
|
HR 5793
HD 139006
HIP 76267
|
|
gptkbp:colorIndexB-V
|
0.00
-0.01
|
|
gptkbp:component
|
stellar classification
G-type star
|
|
gptkbp:constellation
|
gptkb:Corona_Borealis
|
|
gptkbp:declination
|
+26° 42′ 52″
|
|
gptkbp:discoveredBy
|
gptkb:John_Goodricke
|
|
gptkbp:discoveredIn
|
1783
|
|
gptkbp:distanceFromEarth
|
75 light years
|
|
gptkbp:FlamsteedDesignation
|
gptkb:5_Coronae_Borealis
|
|
gptkbp:hasExoplanet
|
no
|
|
gptkbp:hasViewOf
|
gptkb:Northern_Hemisphere
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Alpha Coronae Borealis
|
|
gptkbp:IAUApprovedName
|
gptkb:Alphecca
|
|
gptkbp:luminosity
|
74 times solar luminosity
|
|
gptkbp:mass
|
2.58 solar masses
|
|
gptkbp:metallicity
|
[Fe/H] = -0.05
|
|
gptkbp:orbitType
|
17.36 days
|
|
gptkbp:otherName
|
gptkb:Alphecca
gptkb:Gemma
|
|
gptkbp:parallax
|
43.46 mas
|
|
gptkbp:partOf
|
gptkb:Corona_Borealis_constellation
|
|
gptkbp:properMotionRA
|
-120.21 mas/yr
-97.74 mas/yr
|
|
gptkbp:radialVelocity
|
-9.4 km/s
|
|
gptkbp:rightAscension
|
15h 34m 41.3s
|
|
gptkbp:spectralType
|
A0V
|
|
gptkbp:temperature
|
9,700 K
|
|
gptkbp:variableType
|
binary star system
|
|
gptkbp:bfsParent
|
gptkb:Alphecca
|
|
gptkbp:bfsLayer
|
8
|