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gptkbp:instanceOf
|
gptkb:star
binary star system
|
|
gptkbp:apparentMagnitude
|
2.23
|
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gptkbp:BayerDesignation
|
gptkb:ζ_UMa
|
|
gptkbp:component
|
gptkb:Mizar_A
gptkb:Mizar_B
|
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gptkbp:constellation
|
gptkb:Ursa_Major
|
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gptkbp:declination
|
+54° 55′ 31″
|
|
gptkbp:discoveredSpectroscopicBinary
|
first
|
|
gptkbp:distanceFromEarth
|
83 light years
|
|
gptkbp:epoch
|
gptkb:J2000
|
|
gptkbp:FlamsteedDesignation
|
gptkb:79_Ursae_Majoris
|
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gptkbp:hasCompanion
|
gptkb:Alcor
|
|
gptkbp:hasNearbyStar
|
gptkb:Alcor
|
|
gptkbp:hasSpectroscopicBinary
|
yes
|
|
gptkbp:hasTraditionalName
|
gptkb:Mizar
|
|
gptkbp:historicalSignificance
|
first spectroscopic binary discovered
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
ζ UMa
|
|
gptkbp:luminosity
|
30 times Sun (Mizar B)
33 times Sun (Mizar A)
|
|
gptkbp:mass
|
2.2 solar masses (Mizar A)
2.4 solar masses (Mizar B)
|
|
gptkbp:metallicity
|
[Fe/H] = -0.02
|
|
gptkbp:name
|
gptkb:Mizar
|
|
gptkbp:parallax
|
39.4 mas
|
|
gptkbp:partOf
|
gptkb:Big_Dipper
|
|
gptkbp:radialVelocity
|
-7.6 km/s
|
|
gptkbp:rightAscension
|
13h 23m 55.5s
|
|
gptkbp:spectralType
|
A2V
|
|
gptkbp:temperature
|
8800 K (Mizar B)
9000 K (Mizar A)
|
|
gptkbp:visibleToNakedEye
|
yes
|
|
gptkbp:bfsParent
|
gptkb:Zeta_Major
|
|
gptkbp:bfsLayer
|
7
|