[DOC] [TLE] BTA-6 - Wikipedia [PAR] The BTA-6 is a 6-metre (20 ft) aperture optical telescope at the Special 
Astrophysical Observatory located in the Zelenchuksky District on the north side 
of the Caucasus Mountains in southern Russia. The BTA-6 achieved first light in 
late 1975, making it the largest telescope in the world until 1990, when it was ... of 
building the largest telescope in the world, a title long held by the 200 inch... [DOC] [TLE] Special Astrophysical Observatory of the Russian Academy of ... [PAR] The Special Astrophysical Observatory (Russian:  
 ... The BTA-6's primary mirror has a diameter of 6 metres (236 
inches) and is housed ... and the BTA-6 remained the world's largest rigid-mirror 
telescope until the ... Each of the 895 27.4 m reflectors can be pointed towards a 
central conical... [DOC] [TLE] List of largest optical refracting telescopes - Wikipedia [PAR] Here is a list of the largest optical refracting telescopes sorted by lens diameter 
and focal length. The largest practical functioning refracting telescope is the 
Yerkes Observatory 40 inch (102 cm) refractor, .... Halstead Observatory, 
Princeton, USA, Roper Mountain Science Center, Greenville, SC, 58.4 cm (23), 
9.8 m (32 ft)... [DOC] [TLE] RATAN-600, The World's Largest Radio Telescope | Amusing Planet [PAR] Jul 29, 2015 ... ... near the village of Zelenchukskaya in the Caucasus Mountains, in Russia, ... 
The RATAN-600 is the world's first multi-element-reflector radio ... one-quarter of 
all the observational material in Russia in the field of ... allowing the telescope to 
scan a source over a range of frequencies in a very short time. [DOC] [TLE] Mirrors For Large Telescopes - Granta Design [PAR] The world's largest single-mirror optical telescope is sited on Mount Semivodrike, 
near Zelenchukskaya in the Caucasus Mountains of Russia in the USSR. The 
mirror is 6 m (236 inches) in diameter, but it has never worked very well. ... 
reflector is that at Mount Palomar in California; it is 5.08 m (200 inches) in 
diameter. [DOC] [TLE] telescope - The development of the telescope and auxiliary ... [PAR] May 4, 2016 ... For 75 years this telescope ranked as the largest in the world and was ... Pyrex 
also was utilized in the main mirror of the 6-metre (236-inch) reflector of the 
Special Astrophysical Observatory in Zelenchukskaya, Russia. .... This linear 
relationship is very useful for working over a wide range of brightness. [DOC] [TLE] Kepler telescope | Article about Kepler telescope by The Free ... [PAR] Find out information about Kepler telescope. traditionally, a system of lenses, 
mirrors ... In a reflecting telescope, or reflector, light is reflected by a concave 
mirror and .... Astrophysical Observatory near Zelenchukskaya, in the Caucasus (
236 in./6 m), the world's largest solid-mirror optical telescope; Palomar 
Observatory (see... [DOC] [TLE] 11030842 - WordPress.com [PAR] runner ot'all the world's greatest telescopes today. But Newton is renowned .... it 
as a strcam of particics and unit-.211 'ut'jtr' .... Largest of all the. American ... size 
by the Russian six metre -.236 inch reector at Zelenchukskaya in the Caucasus 
Mountains. Strangely ... specifically to be used with the widest range of recording
... [DOC] [TLE] Astronomical Instruments [PAR] These instruments, known as radio telescopes, have been developed as the 
result of ... approximations to our present day, month, and year appeared as 
basic units. ..... The largest telescope at present is the 236-inch (6-meter) reflector 
of the ... of the U.S.S.R. It is situated near Zelenchukskaya, in the Caucasus 
Mountains,... [DOC] [TLE] 6. Materials Selection - Case Studies_ [PAR] Mar 4, 2011 ... They are the materials with the largest values of M , and it is these ... near 
Zelenchukskaya in the Caucasus Mountains of Russia. ... The total cost of a large 
(236-inch) telescope is, like the telescope ..... Here we seek the material which 
stores the most energy per unit ... Large weight for acceptable range. [DOC] [TLE] Calamo - O Guia do Idiota sobre astronomia [PAR] Its 200-inch (

Question: The world's largest reflector telescope is the 236-inch unit at Zelenchukskaya in this Russian mountain range
Answer: Caucasus