Sigma Librae

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November 28, 2009 – 2:30 pm

Sigma Librae(σ Librae) este o stea in constelatia Libra(Balanta). Are mai multe denumiri traditionale, printre care se numara Brachium(Brat(Latina)) si Zubenalgubi(Talerul Sudului(Araba)). Aceasta stea a primit initial denumirea Bayer “γ Scorpii”, chiar daca aceasta stea se afla in constelatia Balanta si departe de frontiera cu Scorpionul. Nu a primit denumirea de Sigma Librae pana in secolul al XIX-lea.

Sigma Librae are o magnitudinea aparenta de +3.25 si apartine clasei spectrale M. Se afla la aproximativ 292 ani-lumina de Pamant.

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