|
gptkbp:instanceOf
|
gptkb:star
|
|
gptkbp:age
|
6.3 billion years
|
|
gptkbp:alsoKnownAs
|
Mu Herculis
|
|
gptkbp:apparentMagnitude
|
3.07
3.42
|
|
gptkbp:BayerDesignation
|
μ Herculis
|
|
gptkbp:catalogue
|
gptkb:Henry_Draper_Catalogue
|
|
gptkbp:catalogueNumber
|
gptkb:HD_159561
|
|
gptkbp:component
|
Mu Herculis A
Mu Herculis B
Mu Herculis C
Mu Herculis D
|
|
gptkbp:constellation
|
gptkb:Hercules
|
|
gptkbp:declination
|
+27° 43′ 14″
|
|
gptkbp:diameter
|
1.7 solar radii
|
|
gptkbp:discoveredBy
|
gptkb:William_Herschel
|
|
gptkbp:discoveredIn
|
1781
|
|
gptkbp:distanceFromEarth
|
27.1 light years
|
|
gptkbp:FlamsteedDesignation
|
69 Herculis
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
HD 159561
|
|
gptkbp:luminosity
|
3.4 solar luminosities
|
|
gptkbp:mass
|
1.1 solar masses
|
|
gptkbp:metallicity
|
[Fe/H] = -0.07
|
|
gptkbp:parallax
|
120.33 mas
|
|
gptkbp:partOf
|
binary star system
|
|
gptkbp:properMotionRA
|
-291.99 mas/yr
-750.59 mas/yr
|
|
gptkbp:radialVelocity
|
-17.6 km/s
|
|
gptkbp:rightAscension
|
17h 46m 27.5s
|
|
gptkbp:spectralType
|
G5IV
|
|
gptkbp:variant
|
no
|
|
gptkbp:bfsParent
|
gptkb:HR_6536
|
|
gptkbp:bfsLayer
|
6
|