|
gptkbp:instanceOf
|
gptkb:star
|
|
gptkbp:age
|
1.8 billion years
|
|
gptkbp:apparentMagnitude
|
3.617
|
|
gptkbp:BayerDesignation
|
β Delphini
|
|
gptkbp:binarySystem
|
true
|
|
gptkbp:catalogueNumber
|
gptkb:HIP_101769
HD 196524
HR 7882
|
|
gptkbp:colorIndexB-V
|
-0.01
+0.44
|
|
gptkbp:component
|
gptkb:Beta_Delphini_B
Beta Delphini A
|
|
gptkbp:constellation
|
gptkb:Delphinus
|
|
gptkbp:declination
|
+14° 35′ 43″
|
|
gptkbp:diameter
|
2.4 solar radii (B)
3.6 solar radii (A)
|
|
gptkbp:discoveredBy
|
gptkb:William_Herschel
|
|
gptkbp:discoveredIn
|
1779
|
|
gptkbp:distanceFromEarth
|
97 light years
|
|
gptkbp:eclipticLatitude
|
+14.6°
313.1°
|
|
gptkbp:FlamsteedDesignation
|
12 Delphini
|
|
gptkbp:hasTraditionalName
|
gptkb:Rotanev
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Beta Delphini
|
|
gptkbp:IAUApprovedName
|
gptkb:Rotanev
|
|
gptkbp:luminosity
|
24 times solar (A)
8 times solar (B)
|
|
gptkbp:mass
|
1.5 solar masses (B)
1.8 solar masses (A)
|
|
gptkbp:metallicity
|
-0.07
|
|
gptkbp:orbitType
|
26.7 years
|
|
gptkbp:otherName
|
gptkb:Rotanev
|
|
gptkbp:parallax
|
33.56 mas
|
|
gptkbp:properMotionRA
|
+49.68 mas/yr
+71.11 mas/yr
|
|
gptkbp:radialVelocity
|
-5.3 km/s
|
|
gptkbp:rightAscension
|
20h 37m 32.0s
|
|
gptkbp:separates
|
0.44 arcseconds (A-B)
|
|
gptkbp:spectralType
|
F5IV
|
|
gptkbp:visibleToNakedEye
|
true
|
|
gptkbp:bfsParent
|
gptkb:Rotanev
|
|
gptkbp:bfsLayer
|
7
|