"The Special Astrophysical Observatory of the Russian Academy of Science (SAO RAS; Russian: Специальная Астрофизическая Обсерватория) is an astronomical observatory, set up in 1966 in the ...
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USSR, and now operated by the Russian Academy of Sciences. Based in the Bolshoi Zelenchuk Valley of the Greater Caucasus near the village of Nizhny Arkhyz, the observatory houses the BTA-6 and RATAN-600, an optical and radio telescope, respectively. The two instruments are about 20 km (12 mi) apart." - (en.wikipedia.org 19.02.2024)
