σ Scorpii

GPTKB entity

Statements (30)
Predicate Object
gptkbp:instanceOf gptkb:star
gptkbp:apparentMagnitude 2.88
gptkbp:declination -25° 35′ 34″
gptkbp:discoveredBy John Herschel (binary nature, 1837)
gptkbp:distanceFromEarth 735 light years
gptkbp:hasComponent σ Scorpii Aa
σ Scorpii Ab
σ Scorpii B
σ Scorpii C
https://www.w3.org/2000/01/rdf-schema#label σ Scorpii
gptkbp:locatedIn gptkb:Scorpius
gptkbp:luminosity ~20,000 times Sun
gptkbp:mass ~18 solar masses (primary component)
gptkbp:name Alniyat
gptkbp:numberOfConstituents binary star system
gptkbp:orbitType 33 days (spectroscopic binary)
gptkbp:otherDesignation gptkb:HD_147165
gptkb:HR_6084
gptkb:HIP_80112
CD-25 11206
SAO 184315
gptkbp:partOf Scorpius (the Scorpion)
gptkbp:rightAscension 16h 21m 11.3s
gptkbp:spectralType B1 III
gptkbp:temperature ~26,000 K (primary component)
gptkbp:variableType gptkb:Beta_Cephei_variable
gptkbp:visibleToNakedEye true
gptkbp:bfsParent gptkb:HD_148478_system
gptkb:HD_147165
gptkbp:bfsLayer 8