|
gptkbp:instanceOf
|
gptkb:star
|
|
gptkbp:alsoKnownAs
|
gptkb:Algol
|
|
gptkbp:apparentMagnitude
|
2.12
|
|
gptkbp:catalogueNumber
|
gptkb:ADS_2362
gptkb:BD+40_673
gptkb:HD_19356
gptkb:HIP_14576
gptkb:HR_936
gptkb:SAO_38592
gptkb:WDS_J03082+4057
|
|
gptkbp:component
|
gptkb:Beta_Persei_A
gptkb:Beta_Persei_B
|
|
gptkbp:componentAName
|
gptkb:Algol_A
|
|
gptkbp:componentAType
|
B8V
|
|
gptkbp:componentBName
|
gptkb:Algol_B
|
|
gptkbp:componentBType
|
K0IV
|
|
gptkbp:componentCName
|
gptkb:Algol_C
|
|
gptkbp:componentCType
|
A7m
|
|
gptkbp:declination
|
+40° 57′ 20″
|
|
gptkbp:discoveredBy
|
gptkb:John_Goodricke
|
|
gptkbp:discoveredIn
|
1782
|
|
gptkbp:distanceFromEarth
|
about 93 light-years
|
|
gptkbp:eccentricity
|
0.0
|
|
gptkbp:hasExoplanet
|
no known exoplanets
|
|
gptkbp:hasViewOf
|
gptkb:Northern_Hemisphere
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Beta Persei
|
|
gptkbp:inclination
|
81 degrees
|
|
gptkbp:locatedIn
|
gptkb:constellation_Perseus
|
|
gptkbp:luminosity
|
98 times solar luminosity
|
|
gptkbp:massOfPrimary
|
3.6 solar masses
|
|
gptkbp:massOfSecondary
|
0.8 solar masses
|
|
gptkbp:massOfTertiary
|
1.7 solar masses
|
|
gptkbp:metallicity
|
-0.15 [Fe/H]
|
|
gptkbp:nameMeaning
|
the demon's head
|
|
gptkbp:notableFor
|
first known eclipsing binary
prototype of Algol variable stars
|
|
gptkbp:orbitalSeparation
|
0.062 AU
|
|
gptkbp:parallax
|
0.22 mas
35.41 mas
|
|
gptkbp:partOf
|
gptkb:Perseus_constellation
|
|
gptkbp:period
|
2.867 days
|
|
gptkbp:properMotionRA
|
-1.91 mas/yr
+2.43 mas/yr
|
|
gptkbp:radialVelocity
|
+4.1 km/s
|
|
gptkbp:rightAscension
|
03h 08m 10.1s
|
|
gptkbp:spectralType
|
B8V
|
|
gptkbp:temperature
|
13,000 K
|
|
gptkbp:tertiaryComponent
|
gptkb:Beta_Persei_C
|
|
gptkbp:variabilityRange
|
2.12 to 3.39
|
|
gptkbp:variableType
|
binary star system
|
|
gptkbp:bfsParent
|
gptkb:Algol
|
|
gptkbp:bfsLayer
|
6
|