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gptkbp:instanceOf
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gptkb:star
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gptkbp:age
|
~242 million years
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gptkbp:alsoKnownAs
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gptkb:Sirius
gptkb:HD_48915
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gptkbp:apparentMagnitude
|
-1.46
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gptkbp:brightestStar
|
gptkb:Canis_Major
night sky
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gptkbp:catalogue
|
gptkb:Henry_Draper_Catalogue
gptkb:Hipparcos_Catalogue
gptkb:Bright_Star_Catalogue
gptkb:SAO_Catalogue
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gptkbp:colorIndexB-V
|
+0.00
-0.05
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gptkbp:constellation
|
gptkb:Canis_Major
|
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gptkbp:declination
|
-16° 42′ 58.017″
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gptkbp:diameter
|
1.711 solar radii
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gptkbp:discoveredBy
|
known since antiquity
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gptkbp:distanceFromEarth
|
8.6 light years
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gptkbp:hasCompanion
|
gptkb:Sirius_B
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gptkbp:hasViewOf
|
most of Earth
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gptkbp:historicalSignificance
|
gptkb:Ancient_Egyptian_calendar
Navigation star
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
SAO 69773
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gptkbp:luminosity
|
25.4 times solar luminosity
|
|
gptkbp:mass
|
2.02 solar masses
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gptkbp:metallicity
|
[Fe/H] = +0.5
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gptkbp:parallax
|
379.21 mas
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gptkbp:partOf
|
gptkb:Sirius_binary_system
|
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gptkbp:properMotionRA
|
-546.01 mas/yr (RA), -1223.07 mas/yr (Dec)
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gptkbp:radialVelocity
|
-5.5 km/s
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gptkbp:rightAscension
|
06h 45m 08.9173s
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gptkbp:rotationPeriod
|
5.5 days
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gptkbp:spectralType
|
A1V
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gptkbp:temperature
|
9940 K
|
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gptkbp:bfsParent
|
gptkb:P_Cyg
|
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gptkbp:bfsLayer
|
8
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