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.
- Categories: Science & Technology
- Location: Republic of Karachaevo-Cherkessia, Russia
- Event date: 27.06.1977
- Date published: 19.07.2021
- Author: Oleg Makarov
- Credit: Sputnik
- Original: 77-6934, 35 mm film
- Media: JPEG, 4059x3543px, 8.4Mb