Bagrat Ioannisiani
Soviet design engineer
Bagrat Konstantinovich Ioannisiani was a Soviet telescope designer of Armenian descent.
He was the chief designer of the BTA-6, one of the largest telescopes in the world. He was awarded the Lenin Prize in 1957. Wikipedia
Born: November 5, 1911, Yerevan, Armenia
Died: December 10, 1985 (age 74 years), Saint Petersburg, Russia
Award: Hero of Socialist Labour (1977)