Season 33 Episodes13
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New generation astronomical telescopes are entirely different from those of the past. They have different types of mountings; their main mirrors are made in a new way, and in some cases there are separate telescopes working in combination. Dr Ron Maddison talks about this
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"Telescopes for the 90s" is episode 6 of The Sky at Night season 33. It aired on June 4, 1989.