|
gptkbp:instanceOf
|
gptkb:star
variable star
|
|
gptkbp:age
|
~10 million years
|
|
gptkbp:alsoKnownAs
|
gptkb:Deneb
|
|
gptkbp:apparentMagnitude
|
1.25
|
|
gptkbp:arabicName
|
Dhaneb
|
|
gptkbp:BayerDesignation
|
gptkb:Alpha_Cygni
|
|
gptkbp:catalogueNumber
|
gptkb:BD+45_3250
gptkb:FK5_777
gptkb:HD_197345
gptkb:HIP_102098
gptkb:HR_7924
gptkb:SAO_49941
gptkb:ADS_14107
gptkb:GC_28817
gptkb:WDS_J20415+4517
|
|
gptkbp:constellation
|
gptkb:Cygnus
|
|
gptkbp:declination
|
+45° 16′ 49″
|
|
gptkbp:diameter
|
203 solar radii
|
|
gptkbp:distanceFromEarth
|
~2,600 light years
|
|
gptkbp:eponymOf
|
Alpha Cygni variable stars
|
|
gptkbp:hasCompanion
|
possible optical companion
|
|
gptkbp:hasViewOf
|
gptkb:Northern_Hemisphere
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
α Cygni
|
|
gptkbp:IAUApprovedName
|
gptkb:Deneb
|
|
gptkbp:isEndOfLifeStage
|
true
|
|
gptkbp:isNavigationStar
|
true
|
|
gptkbp:isPartOfAsterism
|
gptkb:Northern_Cross
|
|
gptkbp:isPoleStarCandidate
|
future
|
|
gptkbp:isSupergiant
|
true
|
|
gptkbp:luminosity
|
196,000 times Sun
|
|
gptkbp:mass
|
19 solar masses
|
|
gptkbp:metallicity
|
-0.2 [Fe/H]
|
|
gptkbp:parallax
|
2.29 mas
|
|
gptkbp:partOf
|
gptkb:Summer_Triangle
|
|
gptkbp:properMotionRA
|
1.02 mas/yr
1.85 mas/yr
|
|
gptkbp:radialVelocity
|
-4.5 km/s
|
|
gptkbp:rightAscension
|
20h 41m 25.9s
|
|
gptkbp:spectralType
|
A2Ia
|
|
gptkbp:temperature
|
8,525 K
|
|
gptkbp:variant
|
gptkb:Alpha_Cygni_variable
|
|
gptkbp:bfsParent
|
gptkb:Alpha_Cygni
|
|
gptkbp:bfsLayer
|
7
|