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gptkbp:instanceOf
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gptkb:star
|
|
gptkbp:apparentMagnitude
|
4.04
-5.8
|
|
gptkbp:catalogueNumber
|
gptkb:FK5_120
gptkb:HD_24912
gptkb:BD+39_807
GC 4782
HIP 18859
HR 1203
ADS 2888
SAO 56799
WDS J04052+4002
|
|
gptkbp:colorIndexB-V
|
-0.24
-1.01
|
|
gptkbp:constellation
|
gptkb:Perseus
|
|
gptkbp:declination
|
+40° 57′ 20″
|
|
gptkbp:diameter
|
about 14 solar radii
|
|
gptkbp:discoveredBy
|
known since antiquity
|
|
gptkbp:distanceFromEarth
|
approximately 950 light-years
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Menkib
|
|
gptkbp:luminosity
|
about 263,000 times that of the Sun
|
|
gptkbp:mass
|
about 40 solar masses
|
|
gptkbp:nameOrigin
|
Arabic 'mankib', meaning 'shoulder'
|
|
gptkbp:otherName
|
gptkb:Xi_Persei
|
|
gptkbp:parallax
|
3.44 mas
|
|
gptkbp:properMotionRA
|
+7.63 mas/yr
-2.79 mas/yr
|
|
gptkbp:radialVelocity
|
-47.6 km/s
|
|
gptkbp:rightAscension
|
04h 00m 48.4s
|
|
gptkbp:rotationPeriod
|
220 km/s
|
|
gptkbp:spectralType
|
O7.5III(n)((f))
|
|
gptkbp:temperature
|
about 35,000 K
|
|
gptkbp:variableStar
|
yes
|
|
gptkbp:bfsParent
|
gptkb:Beta_Cephei_variable_stars
gptkb:HD_5394
gptkb:Xi_Persei
|
|
gptkbp:bfsLayer
|
8
|