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gptkbp:instanceOf
|
gptkb:star
binary star system
|
|
gptkbp:age
|
37 million years
|
|
gptkbp:alsoKnownAs
|
gptkb:Achernar
|
|
gptkbp:apparentMagnitude
|
0.46
|
|
gptkbp:BayerDesignation
|
gptkb:α_Eridani
|
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gptkbp:catalogueNumber
|
gptkb:GC_2032
gptkb:HD_10144
gptkb:HIP_7588
gptkb:HR_472
gptkb:SAO_232481
gptkb:2MASS_J01374282-5714123
gptkb:GJ_9159
CD-57 334
|
|
gptkbp:constellation
|
gptkb:Eridanus
|
|
gptkbp:declination
|
-57° 14′ 12.310″
|
|
gptkbp:diameter
|
7.3 solar radii
|
|
gptkbp:discoveredBy
|
ancient astronomers
|
|
gptkbp:distanceFromEarth
|
139 light years
|
|
gptkbp:eponymOf
|
gptkb:Achernar_Observatory
|
|
gptkbp:equatorialCoordinates
|
RA 01h 37m 42.845s, Dec -57° 14′ 12.310″
|
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gptkbp:FlamsteedDesignation
|
gptkb:39_Eridani
|
|
gptkbp:hasCompanion
|
gptkb:Alpha_Eridani_B
|
|
gptkbp:hasExoplanet
|
no
|
|
gptkbp:hasViewOf
|
gptkb:Southern_Hemisphere
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Alpha Eridani
|
|
gptkbp:IAUApprovedName
|
gptkb:Achernar
|
|
gptkbp:luminosity
|
3150 times Sun
|
|
gptkbp:mass
|
6.7 solar masses
|
|
gptkbp:metallicity
|
-0.36 [Fe/H]
|
|
gptkbp:notableFor
|
one of the flattest stars known
ninth-brightest star in the night sky
|
|
gptkbp:parallax
|
23.39 mas
|
|
gptkbp:partOf
|
gptkb:Eridanus_constellation
|
|
gptkbp:properMotionRA
|
+88.99 mas/yr
-40.08 mas/yr
|
|
gptkbp:rightAscension
|
01h 37m 42.845s
|
|
gptkbp:rotationPeriod
|
250 km/s
|
|
gptkbp:spectralType
|
B6Vep
|
|
gptkbp:temperature
|
15,000 K
|
|
gptkbp:variableType
|
Be star
|
|
gptkbp:bfsParent
|
gptkb:Achernar
|
|
gptkbp:bfsLayer
|
7
|