|
gptkbp:instanceOf
|
gptkb:star
|
|
gptkbp:age
|
~242 million years
|
|
gptkbp:alternativeName
|
gptkb:Sirius
gptkb:HD_48915
|
|
gptkbp:apparentMagnitude
|
-1.46
|
|
gptkbp:catalogue
|
gptkb:Smithsonian_Astrophysical_Observatory_Star_Catalog
|
|
gptkbp:colorIndexB-V
|
+0.00
|
|
gptkbp:constellation
|
gptkb:Canis_Major
|
|
gptkbp:declination
|
-16° 42′ 58.017″
|
|
gptkbp:diameter
|
1.711 solar radii
|
|
gptkbp:distanceFromEarth
|
8.6 light years
|
|
gptkbp:epoch
|
gptkb:J2000
|
|
gptkbp:hasCompanion
|
gptkb:Sirius_B
|
|
gptkbp:hasExoplanet
|
no confirmed exoplanets
|
|
gptkbp:hasViewOf
|
gptkb:Northern_Hemisphere
gptkb:Southern_Hemisphere
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
SAO 57841
|
|
gptkbp:luminosity
|
25.4 times solar luminosity
|
|
gptkbp:mass
|
2.02 solar masses
|
|
gptkbp:metallicity
|
[Fe/H] ≈ +0.5
|
|
gptkbp:name
|
gptkb:Sirius
|
|
gptkbp:notableFor
|
brightest star in the night sky
|
|
gptkbp:observedBy
|
gptkb:Hipparcos_satellite
gptkb:Gaia_satellite
|
|
gptkbp:parallax
|
379.21 mas
|
|
gptkbp:partOf
|
gptkb:Sirius_binary_system
|
|
gptkbp:properMotionRA
|
-1223.07 mas/yr
-546.01 mas/yr
|
|
gptkbp:radialVelocity
|
-5.5 km/s
|
|
gptkbp:rightAscension
|
06h 45m 08.9173s
|
|
gptkbp:spectralType
|
A1V
|
|
gptkbp:bfsParent
|
gptkb:HIP_24220
gptkb:HD_34137
|
|
gptkbp:bfsLayer
|
8
|