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- Great_refractor abstract "Great refractor refers to a large telescope with a lens, usually the largest refractor at an observatory with an equatorial mount. The preeminence and success of this style in observational astronomy was an era in telescope use in the 19th and early 20th century. Great refractors were large refracting telescopes using achromatic lenses (as opposed to mirrors). They were often the largest in the world, or largest in a region. Despite typical designs having smaller apertures than reflectors, Great refractors offered a number of advantages and were favored for astronomy.It was not until the 20th century that they were gradually superseded by large reflecting telescopes for professional astronomy. A great refractor was often the centerpiece of a new 19th century observatory, but was typically used with an entourage of other astronomical instruments such as a Meridian Circle, a Heliometer, and Astrograph, and a smaller refractor such as a Comet Seeker or Equatorial. Great refractors were often used for observing double stars and equipped with a Filar micrometer. Numerous discoveries of minor planets, satellites, the planet Neptune, double stars, and pioneering work on astrophotography was done great refractors.".
- Great_refractor thumbnail Refraktor_Wien_Kerschbaum_1.jpg?width=300.
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- Great_refractor wikiPageExternalLink building_large_telescopes_refractors.pdf.
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- Great_refractor wikiPageWikiLink 1862_International_Exhibition.
- Great_refractor wikiPageWikiLink Achromat.
- Great_refractor wikiPageWikiLink Achromatic_lens.
- Great_refractor wikiPageWikiLink Achromatic_telescope.
- Great_refractor wikiPageWikiLink Aerial_telescope.
- Great_refractor wikiPageWikiLink Aerial_telescopes.
- Great_refractor wikiPageWikiLink Alvan_Clark_&_Sons.
- Great_refractor wikiPageWikiLink Apochromat.
- Great_refractor wikiPageWikiLink Archenhold_Observatory.
- Great_refractor wikiPageWikiLink Astrograph.
- Great_refractor wikiPageWikiLink Astrophysical_Institute_Potsdam.
- Great_refractor wikiPageWikiLink Berlin_Observatory.
- Great_refractor wikiPageWikiLink Cambridge_Observatory.
- Great_refractor wikiPageWikiLink Carl_August_von_Steinheil.
- Great_refractor wikiPageWikiLink Category:19th_century.
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- Great_refractor wikiPageWikiLink Chance_Brothers.
- Great_refractor wikiPageWikiLink Charles_Feil.
- Great_refractor wikiPageWikiLink Chester_Moore_Hall.
- Great_refractor wikiPageWikiLink Cincinnati_Observatory.
- Great_refractor wikiPageWikiLink Comet_Seeker.
- Great_refractor wikiPageWikiLink Comet_seeker.
- Great_refractor wikiPageWikiLink Craig_telescope.
- Great_refractor wikiPageWikiLink Crossley_Reflector.
- Great_refractor wikiPageWikiLink Crossley_telescope.
- Great_refractor wikiPageWikiLink Dearborn_Observatory.
- Great_refractor wikiPageWikiLink Discovery_of_Neptune.
- Great_refractor wikiPageWikiLink Dorpat_Observatory.
- Great_refractor wikiPageWikiLink Equatorial_mount.
- Great_refractor wikiPageWikiLink Estonia.
- Great_refractor wikiPageWikiLink Extremely_large_telescope.
- Great_refractor wikiPageWikiLink Figuring.
- Great_refractor wikiPageWikiLink Filar_micrometer.
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- Great_refractor wikiPageWikiLink Gravity.
- Great_refractor wikiPageWikiLink Great_Paris_Exhibition_Telescope_of_1900.
- Great_refractor wikiPageWikiLink Harvard_College_Observatory.
- Great_refractor wikiPageWikiLink Heliometer.
- Great_refractor wikiPageWikiLink Heliostat.
- Great_refractor wikiPageWikiLink James_Lick_telescope.
- Great_refractor wikiPageWikiLink Johann_Gottfried_Galle.
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- Great_refractor wikiPageWikiLink Joseph_von_Fraunhofer.
- Great_refractor wikiPageWikiLink Kensington_Observatory.
- Great_refractor wikiPageWikiLink Leibniz_Institute_for_Astrophysics_Potsdam.
- Great_refractor wikiPageWikiLink Lens_sag.
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- Great_refractor wikiPageWikiLink List_of_largest_optical_refracting_telescopes.
- Great_refractor wikiPageWikiLink List_of_largest_optical_telescopes_in_the_18th_century.
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- Great_refractor wikiPageWikiLink List_of_largest_optical_telescopes_in_the_20th_century.
- Great_refractor wikiPageWikiLink List_of_telescope_types.
- Great_refractor wikiPageWikiLink Léon_Foucault.
- Great_refractor wikiPageWikiLink Markree_Observatory.
- Great_refractor wikiPageWikiLink Meridian_Circle.
- Great_refractor wikiPageWikiLink Meridian_circle.
- Great_refractor wikiPageWikiLink Merz_Telescopes.
- Great_refractor wikiPageWikiLink Mount_Wilson_Observatory.
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- Great_refractor wikiPageWikiLink Northumberland_Equatorial.
- Great_refractor wikiPageWikiLink Observatory_of_Strasbourg.
- Great_refractor wikiPageWikiLink Paris_Observatory.
- Great_refractor wikiPageWikiLink Paris_inch.
- Great_refractor wikiPageWikiLink Pierre_Louis_Guinand.
- Great_refractor wikiPageWikiLink Primary_mirror.
- Great_refractor wikiPageWikiLink Pulkovo_Observatory.
- Great_refractor wikiPageWikiLink Pulkovo_observatory.
- Great_refractor wikiPageWikiLink Quito_Astronomical_Observatory.
- Great_refractor wikiPageWikiLink Refracting_telescope.
- Great_refractor wikiPageWikiLink Royal_Greenwich_Observatory.
- Great_refractor wikiPageWikiLink Royal_Observatory,_Greenwich.
- Great_refractor wikiPageWikiLink Short_ton.
- Great_refractor wikiPageWikiLink Siderostat.
- Great_refractor wikiPageWikiLink Speculum_metal.
- Great_refractor wikiPageWikiLink Tartu_Observatory.
- Great_refractor wikiPageWikiLink Thomas_Grubb.
- Great_refractor wikiPageWikiLink U.S._Naval_Observatory.
- Great_refractor wikiPageWikiLink United_States_Naval_Observatory.
- Great_refractor wikiPageWikiLink Vienna_Observatory.