Beta Lyrae system

URI: https://gptkb.org/entity/Beta_Lyrae_system

GPTKB entity

Predicate	Object
gptkbp:instanceOf	gptkb:binary_star_system
gptkbp:apparentMagnitude	3.52
gptkbp:component	gptkb:Beta_Lyrae_A gptkb:Beta_Lyrae_B
gptkbp:declination	+33° 21′ 46″
gptkbp:discoveredBy	gptkb:John_Goodricke
gptkbp:discoveredIn	1784
gptkbp:distanceFromEarth	960 light years
gptkbp:eclipsingBinary	yes
gptkbp:locatedIn	constellation Lyra
gptkbp:luminosity	~25,000 L☉
gptkbp:mainStar	no
gptkbp:massTransfer	yes
gptkbp:metallicity	gptkb:unknown
gptkbp:notableFor	prototype of Beta Lyrae variables
gptkbp:numberOfConstituents	at least 6
gptkbp:orbitType	12.9 days
gptkbp:otherName	gptkb:Sheliak
gptkbp:parallax	3.39 mas
gptkbp:properMotionRA	-4.59 mas/yr 2.37 mas/yr
gptkbp:radialVelocity	-19.2 km/s
gptkbp:rightAscension	18h 50m 04.8s
gptkbp:SIMBADID	bet+Lyr
gptkbp:spectralType	B7II
gptkbp:variableType	gptkb:Beta_Lyrae_variable
gptkbp:bfsParent	gptkb:The_Tail_of_Beta_Lyrae gptkb:Beta_Lyrae_A gptkb:Beta_Lyrae_B gptkb:Sheliak_B gptkb:Sheliak_C
gptkbp:bfsLayer	8
https://www.w3.org/2000/01/rdf-schema#label	Beta Lyrae system