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Refracting telescope
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==List of the largest refracting telescopes== [[File:Chicago's Great Telescope (3573567148).jpg|thumb|The Yerkes Great refractor mounted at the 1893 World's Fair in Chicago; the tallest, longest, and biggest aperture refractor up to that time.]] [[File:Refraktor Wien Kerschbaum 1.jpg|thumb|The {{convert|68|cm|abbr=on|lk=in}} refractor at the [[Vienna Observatory|Vienna University Observatory]]]] Examples of some of the largest achromatic refracting telescopes, over {{convert|60|cm|in|abbr=on}} diameter. * [[Great Paris Exhibition Telescope of 1900]] ({{convert|1.25|m|in|abbr=on|disp=or}}) β dismantled after exhibition * [[Yerkes Observatory]] ({{convert|40|in|cm|abbr=on|order=flip|disp=or|sigfig=4}}) * [[Swedish Solar Telescope|Swedish 1-m Solar Telescope]] ({{convert|98|cm|in|abbr=on|disp=or}}) * [[Lick Observatory]] ({{convert|36|in|cm|abbr=on|order=flip|disp=or}}) * [[Paris Observatory]] [[Meudon Great Refractor]] ({{convert|83|cm|in|abbr=on}}, + {{convert|62|cm|in|abbr=on}}) * [[Potsdam Great Refractor]] ({{convert|80|cm|in|abbr=on}}, + {{convert|50|cm|in|abbr=on}}) * [[Nice Observatory]] ({{convert|77|cm|in|abbr=on|disp=or}}) * [[John Wall (inventor)|John Wall]] ({{convert|30|in|cm|abbr=on|order=flip|disp=or|sigfig=4}}) [[Dialyte lens#Dialyte telescopes|dialyte]] refracting telescope - the largest refractor built by an individual, at Hanwell Community Observatory<ref>{{Cite web|url=http://www.hanwellobservatory.org.uk/telescopes/john-wall|title = John Wall refractor | Hanwell Community Observatory}}</ref> *[[Greenwich 28 inch refractor|28-inch Grubb Refractor]] at [[Royal Greenwich Observatory]], ({{convert|71|cm|in|abbr=on|disp=or}}) aperture lens *Great Refractor of [[Vienna Observatory]], ({{convert|69|cm|in|abbr=on|disp=or}}) * [[Archenhold Observatory]] β the longest refracting telescope ever built ({{convert|68|cm|in|abbr=on|disp=or}} Γ {{convert|21|m|ft|abbr=on|disp=or}} focal length) * United States Naval Observatory refractor, ({{convert|66|cm|in|abbr=on|disp=or}}) * [[Newall Refractor|Newall refractor]] at the [[National Observatory of Athens]] ({{convert|62.5|cm|in|abbr=on|disp=or}}) * [[Lowell Observatory]] ({{convert|24|in|cm|abbr=on|order=flip|disp=or}})
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