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Title: The largest refracting telescope in the world is the 102-cm (40 in.) telescope at Yerkes ... Post by: staedtler on Mar 16, 2017 The largest refracting telescope in the world is the 102-cm (40 in.) telescope at Yerkes Observatory, built in 1897. Why have no larger refracting telescopes ever been built?
A) Larger lenses have too much chromatic aberration. B) The sagging of larger lenses under their own weight will produce image distortion. C) The thickness of larger lenses will produce too much spherical aberration. D) Larger lenses produce too much magnification. Title: Re: The largest refracting telescope in the world is the 102-cm (40 in.) telescope at Yerkes ... Post by: discoverer on Mar 16, 2017 Content hidden
Title: Re: The largest refracting telescope in the world is the 102-cm (40 in.) telescope at Yerkes ... Post by: staedtler on May 1, 2017 ;D Exactly what I needed
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