The world's first radio-optical ROT-54/2.6 radio-optical telescope or the Geruni mirror radio-telescope on the slope of Mount Aragats in the Armenian SSR and at the Aragats Scientific Center of the Yerevan Physics Institute, now the Alikhanyan National Scientific Laboratory.03.09.1987#8297754
The world's first ROT-54/2.6 radio-optical telescope or the Geruni mirror radio-telescope on the slope of Mount Aragats in the Armenian SSR and at the Aragats Scientific Center of the Yerevan Physics Institute, now the Alikhanyan National Scientific Laboratory.03.09.1987#8297753
The Byurakan Observatory (now Viktor Ambartsumian Byurakan Astrophysics Observatory of the National Academy of Sciences of the Republic of Armenia), Armenian Soviet Socialist Republic. Checking equipment in the optical mechanics workshop.15.05.1970#6515428
The Byurakan Observatory (now Viktor Ambartsumian Byurakan Astrophysics Observatory of the National Academy of Sciences of the Republic of Armenia), Armenian Soviet Socialist Republic.15.04.1970#6515427
