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gptkbp:instanceOf
|
gptkb:star
binary star system
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|
gptkbp:age
|
~242 million years
|
|
gptkbp:apparentMagnitude
|
-1.46
+1.42
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gptkbp:catalogueNumber
|
gptkb:FK5_238
gptkb:GC_8897
gptkb:BD−16°1591
gptkb:GJ_244
gptkb:HD_48915
gptkb:HIP_32349
gptkb:HR_2491
gptkb:SAO_151881
gptkb:WDS_J06451-1643
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gptkbp:colorIndexB-V
|
+0.00
-0.05
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gptkbp:component
|
gptkb:Sirius_B
gptkb:Sirius_A
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gptkbp:constellation
|
gptkb:Canis_Major
|
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gptkbp:culturalSignificance
|
heliacal rising marked Egyptian New Year
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gptkbp:declination
|
−16° 42′ 58.017″
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gptkbp:diameter
|
1.711 solar radii (Sirius A)
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gptkbp:discoveredBy
|
Friedrich Bessel (binary nature)
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gptkbp:distanceFromEarth
|
8.6 light years
|
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gptkbp:eccentricity
|
0.592 (binary system)
|
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gptkbp:hasCompanion
|
gptkb:Sirius_B
gptkb:Sirius_A
white dwarf (Sirius B)
|
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gptkbp:hasTraditionalName
|
gptkb:Sirius
|
|
gptkbp:hasViewOf
|
all inhabited regions of Earth except far north
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Alpha Canis Majoris
|
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gptkbp:luminosity
|
25.4 times Sun (Sirius A)
|
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gptkbp:mainStar
|
gptkb:Sirius_A
|
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gptkbp:mass
|
2.02 solar masses (Sirius A)
|
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gptkbp:metallicity
|
[Fe/H] = +0.5
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gptkbp:name
|
gptkb:Sirius
|
|
gptkbp:notableFor
|
brightest star in the night sky
|
|
gptkbp:observedBy
|
gptkb:ancient_Egyptians
|
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gptkbp:orbitType
|
50.1 years (binary system)
|
|
gptkbp:otherName
|
gptkb:Dog_Star
|
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gptkbp:parallax
|
379.21 mas
|
|
gptkbp:properMotionRA
|
-1223.07 mas/yr
+546.01 mas/yr
|
|
gptkbp:radialVelocity
|
-5.5 km/s
|
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gptkbp:rightAscension
|
06h 45m 08.9173s
|
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gptkbp:spectralType
|
A1V
|
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gptkbp:temperature
|
9,940 K (Sirius A)
|
|
gptkbp:whiteDwarfCompanion
|
gptkb:Sirius_B
|
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gptkbp:bfsParent
|
gptkb:Sirius
|
|
gptkbp:bfsLayer
|
6
|