Bagrat IoannisianiMonday, August 12, 2019
Bagrat Ioannisiani (23 October [O.S. 10 October] 1911, Yerevan – 10 December 1985, Leningrad) 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.