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gptkbp:instanceOf
|
gptkb:star
astronomer
|
|
gptkbp:age
|
37 million years
|
|
gptkbp:apparentMagnitude
|
0.46
-1.46
|
|
gptkbp:catalogue
|
gptkb:Henry_Draper_Catalogue
gptkb:Hipparcos_Catalogue
gptkb:Bright_Star_Catalogue
gptkb:FK5_Catalogue
gptkb:SAO_Catalogue
|
|
gptkbp:constellation
|
gptkb:Eridanus
|
|
gptkbp:declination
|
-57° 14′ 12.310″
|
|
gptkbp:diameter
|
7.3 solar radii (equatorial)
|
|
gptkbp:discoveredBy
|
ancient astronomers
|
|
gptkbp:distanceFromEarth
|
139 light-years
|
|
gptkbp:epoch
|
gptkb:J2000
|
|
gptkbp:eponymOf
|
Achernar (river's end in Arabic)
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|
gptkbp:flattening
|
significant (oblate shape)
|
|
gptkbp:galaxyType
|
B-type main-sequence star
|
|
gptkbp:hasCompanion
|
gptkb:Achernar_B
|
|
gptkbp:hasExoplanet
|
no known exoplanets
|
|
gptkbp:hasViewOf
|
gptkb:Southern_Hemisphere
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Achernar (Alpha Eridani)
|
|
gptkbp:IAUApprovedName
|
gptkb:Achernar
|
|
gptkbp:luminosity
|
3,150 times solar
|
|
gptkbp:mass
|
6.7 solar masses
|
|
gptkbp:metallicity
|
[Fe/H] ≈ 0.0
|
|
gptkbp:notableFeature
|
ninth-brightest star in the night sky
brightest star in Eridanus
most oblate star known
|
|
gptkbp:otherName
|
gptkb:Alpha_Eridani
gptkb:FK5_54
gptkb:HD_10144
gptkb:HIP_7588
gptkb:HR_472
gptkb:SAO_232481
CD−57°334
|
|
gptkbp:parallax
|
23.39 mas
|
|
gptkbp:partOf
|
gptkb:Eridanus_constellation
|
|
gptkbp:rightAscension
|
01h 37m 42.845s
|
|
gptkbp:rotationPeriod
|
250 km/s
|
|
gptkbp:spectralType
|
B6Vep
|
|
gptkbp:temperature
|
15,000 K
|
|
gptkbp:variableStar
|
Be star
|
|
gptkbp:bfsParent
|
gptkb:A-type_main-sequence_star_(Achernar_B)
|
|
gptkbp:bfsLayer
|
8
|