Chikamu chinopenya zvikuru chechirongwa ichi, Sigma Scorpii Aa, inyeredzi mbiri ine mitsetse miviri, zvinoreva kuti vaviri ava havana kuongororwa vachishandisa teresikopu. Panzvimbo pezvo, kutenderera kwavo kunotsanangurwa nekushanduka kwehunhu hwavo hwakabatanidzwa hunokonzerwa nekushandurwa kwaDoppler. Izvi zvinoratidza kuti vaviri ava vanopedza kutenderera kwese mazuva 33.01 uye vane eccentricity yekutenderera ye0.32. Chinhu chikuru cheiyo spectroscopic binary, Sigma Scorpii Aa1, nyeredzi hombe yakashanduka ine nyeredzi classification yeB1 III. Iine kanokwana ka18 kuwanda kwezuva uye kanokwana ka12 nharaunda yezuva. Nyeredzi iyi iri kupenya kanokwana ka29000 kupenya kwezuva kubva kune yayo yekunze envelope patembiricha ye26150 K. Iyi nyeredzi inochinja yeAstronometric mhando Beta Cephei, inokonzeresa shanduko mune yavo yakabatanidzwa spectrum inokonzerwa neDoppler shift.
Iyi inyeredzi inochinja yerudzi rweBeta Cephei