Special Astrophysics Observatory of the USSR Academy of Sciences (now Russian Academy of Sciences) in the Zelenchuksky District (Zelenchukskaya village) in the Karachayevo-Circassian Autonomous Republic. It was there that in 1974, the world's largest radio telescope, RATAN-600 (Radioastronomic Telescope of the Academy of Sciences) with a 600 m reflection mirror.27.06.1977#6499781
Special Astrophysical Observatory of the Soviet Academy of Sciences (now RAS), located in Stanitsa Zelenchukskaya, Zelenchukskaya District, Karachayevo-Circassian Autonomous Region. The world's largest radio telescope, RATAN-600 (Academy of Sciences Radio Telescope – 600) with a reflex mirror about 600 meters in diameter.27.06.1977#6598799
