Bol'shoi Teleskop Azimultal'nyi (BTA)
A 6-meter telescope at an altitude of 2,070 meters on the slopes of Mount
Pastukhov on the northern side of the Caucasus range in Russia. Opened in
1976 it was the world's largest optical instrument, beating out the Hale
Telescope, until the first of the telescopes at the Keck
Observatory when into operation in 1993. Few detailed results from the
BTA have appeared in the West and it is widely recognized that, although
impressive in size, it suffers from a number of problems, including less-than-ideal
climate, suspect optics, and a lack of state-of-the-art digital instrumentation.
Related category
• OBSERVATORIES
AND TELESCOPES
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