|
gptkbp:instanceOf
|
gptkb:star
binary star system
|
|
gptkbp:age
|
60 million years
|
|
gptkbp:apparentMagnitude
|
2.06
|
|
gptkbp:BayerDesignation
|
gptkb:α_Andromedae
|
|
gptkbp:catalogueNumber
|
gptkb:BD+28_39
gptkb:HD_358
gptkb:HIP_677
gptkb:HR_15
gptkb:SAO_73765
|
|
gptkbp:chemicalPeculiarity
|
mercury-manganese star
|
|
gptkbp:colorIndexB-V
|
-0.02
-0.32
|
|
gptkbp:component
|
gptkb:Alpha_Andromedae_A
gptkb:Alpha_Andromedae_B
|
|
gptkbp:constellation
|
gptkb:Andromeda
|
|
gptkbp:culturalSignificance
|
used in navigation
featured in Greek mythology
|
|
gptkbp:declination
|
+29° 05′ 25.6″
|
|
gptkbp:diameter
|
2.7 solar radii
|
|
gptkbp:discoveredBy
|
ancient astronomers
|
|
gptkbp:distanceFromEarth
|
97 light years
|
|
gptkbp:eclipticLatitude
|
+23.46°
0.14°
|
|
gptkbp:FlamsteedDesignation
|
gptkb:21_Andromedae
|
|
gptkbp:hasExoplanet
|
no
|
|
gptkbp:hasViewOf
|
gptkb:Northern_Hemisphere
Southern Hemisphere (partially)
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Alpha Andromedae
|
|
gptkbp:IAUApprovedName
|
gptkb:Alpheratz
|
|
gptkbp:luminosity
|
200 times solar luminosity
|
|
gptkbp:mass
|
3.6 solar masses
|
|
gptkbp:metallicity
|
high
|
|
gptkbp:notableFor
|
brightest star in Andromeda
corner star of Great Square of Pegasus
|
|
gptkbp:orbitType
|
96.7 days
|
|
gptkbp:otherName
|
gptkb:Sirrah
gptkb:Alpheratz
|
|
gptkbp:parallax
|
33.62 mas
|
|
gptkbp:partOf
|
gptkb:Great_Square_of_Pegasus
|
|
gptkbp:properMotionRA
|
-162.95 mas/yr
135.68 mas/yr
|
|
gptkbp:radialVelocity
|
-12.2 km/s
|
|
gptkbp:rightAscension
|
00h 08m 23.26s
|
|
gptkbp:rotationPeriod
|
52 km/s
|
|
gptkbp:separates
|
0.818 AU
|
|
gptkbp:spectralType
|
B8IVpMnHg
|
|
gptkbp:temperature
|
13,800 K
|
|
gptkbp:variableStar
|
no
|
|
gptkbp:bfsParent
|
gptkb:Andromeda_constellation
gptkb:Great_Square
|
|
gptkbp:bfsLayer
|
6
|