|
gptkbp:instanceOf
|
gptkb:star
astronomer
|
|
gptkbp:age
|
~10 million years
|
|
gptkbp:apparentMagnitude
|
1.25
-8.38
|
|
gptkbp:BayerDesignation
|
gptkb:Alpha_Cygni
|
|
gptkbp:brightestStar
|
gptkb:Cygnus
night sky
|
|
gptkbp:catalogueNumber
|
gptkb:ADS_14107_A
gptkb:BD+45_3250
gptkb:FK5_777
gptkb:GC_28820
gptkb:GSC_03564-03200
gptkb:HD_197345
gptkb:HIP_102098
gptkb:HR_7924
gptkb:SAO_49941
gptkb:WDS_J20415+4517A
|
|
gptkbp:constellation
|
gptkb:Cygnus
|
|
gptkbp:declination
|
+45° 16′ 49″
|
|
gptkbp:diameter
|
203 solar radii
|
|
gptkbp:discoveredBy
|
ancient astronomers
|
|
gptkbp:distanceFromEarth
|
~2,600 light-years
|
|
gptkbp:hasCompanion
|
no known companion
|
|
gptkbp:hasViewOf
|
gptkb:Northern_Hemisphere
Southern Hemisphere (partially)
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Deneb
|
|
gptkbp:isEndOf
|
Cygnus (the Swan)'s tail
|
|
gptkbp:isEvolvedStar
|
yes
|
|
gptkbp:isFuturePoleStar
|
yes
|
|
gptkbp:isIAUApprovedName
|
yes
|
|
gptkbp:isLikelyToBecome
|
supernova
|
|
gptkbp:isNamedStar
|
yes
|
|
gptkbp:isPartOfAsterism
|
gptkb:Northern_Cross
gptkb:Summer_Triangle
|
|
gptkbp:isReferencePointFor
|
celestial navigation
|
|
gptkbp:isSupergiant
|
yes
|
|
gptkbp:luminosity
|
196,000 times Sun
|
|
gptkbp:mass
|
19 solar masses
|
|
gptkbp:metallicity
|
-0.2 [Fe/H]
|
|
gptkbp:nameOrigin
|
Arabic 'dhaneb' meaning 'tail'
|
|
gptkbp:parallax
|
1.01 mas
|
|
gptkbp:partOf
|
gptkb:Northern_Cross
gptkb:Summer_Triangle
|
|
gptkbp:properMotionRA
|
yes
1.02 mas/yr
1.49 mas/yr
|
|
gptkbp:rightAscension
|
20h 41m 25.9s
|
|
gptkbp:spectralType
|
A2Ia
|
|
gptkbp:temperature
|
8,525 K
|
|
gptkbp:type
|
blue-white supergiant
|
|
gptkbp:variableStar
|
yes
|
|
gptkbp:variant
|
gptkb:Alpha_Cygni_variable
|
|
gptkbp:bfsParent
|
gptkb:Cygnus_(constellation)
|
|
gptkbp:bfsLayer
|
5
|