Sirio

GPTKB entity

Statements (54)
Predicate Object
gptkbp:instanceOf gptkb:star
gptkbp:age ~242 million years
gptkbp:alsoKnownAs gptkb:Sirius
gptkbp:apparentMagnitude -1.46
gptkbp:binarySystem yes
gptkbp:catalogue gptkb:Hipparcos_Catalogue
gptkb:Bright_Star_Catalogue
gptkbp:catalogueNumber gptkb:Gliese_244
gptkb:BD−16°1591
gptkb:FK5_208
gptkb:HD_48915
gptkb:HIP_32349
gptkb:HR_2491
gptkb:SAO_151881
gptkb:WDS_J06451-1643
ADS 5423
GC 8892
gptkbp:color white
gptkbp:companionDiscoveryYear 1844
gptkbp:component gptkb:Sirius_B
gptkb:Sirius_A
gptkbp:constellation gptkb:Canis_Major
gptkbp:culturalSignificance gptkb:Dog_Days_of_summer
associated with flooding of Nile
calendar marker for ancient Egypt
gptkbp:declination -16° 42′ 58″
gptkbp:diameter 1.711 solar radii
gptkbp:discoveredCompanion gptkb:Friedrich_Bessel
gptkbp:distanceFromEarth 8.6 light years
gptkbp:firstPhotographed 1850s
gptkbp:hasCompanion gptkb:Sirius_B
white dwarf
gptkbp:hasViewOf most of Earth
https://www.w3.org/2000/01/rdf-schema#label Sirio
gptkbp:luminosity 25.4 times Sun
gptkbp:mass 2.02 solar masses
gptkbp:mythology associated with the dog star
gptkbp:notableFor brightest star in the night sky
gptkbp:observedBy gptkb:ancient_Egyptians
gptkb:ancient_Greeks
gptkb:Babylonians
gptkb:Chinese_astronomers
gptkbp:parallax 379.21 mas
gptkbp:partOf gptkb:Milky_Way
gptkbp:properMotionRA -546.01 mas/yr
gptkbp:rightAscension 06h 45m 08.9s
gptkbp:risesIn winter (Northern Hemisphere)
gptkbp:setsIn summer (Northern Hemisphere)
gptkbp:spectralType A1V
gptkbp:bfsParent gptkb:Milan_Tram
gptkb:Lazza
gptkb:Athens_Tram
gptkb:Marina_Militare
gptkbp:bfsLayer 6