It was discovered by Johann Palisa on September 4 , 1880 , in Pola .
It was was named after the Austro - Hungarian opera singer Bianca Bianchi ( real name Bertha Schwarz ) .
It was discovered by Johann Palisa on September 4 , 1880 , in Pola and was named after the Austro - Hungarian opera singer Bianca Bianchi ( real name Bertha Schwarz ) .