The following is a list of the largest optical reflecting telescopes sorted by mirror diameter. Note that two of the first three are not yet operational. This list does not currently include telescopes that are still in the conceptual/proposed stage, such as the Overwhelmingly Large Telescope or the European Extremely Large Telescope, or ones still in the early stages of manufacturing such as the Giant Magellan Telescope. Ritchey 24 reflecting telescope A reflecting telescope (reflector) is an optical telescope which uses mirrors, rather than lenses, to reflect light. ... 50 cm refracting telescope at Nice Observatory. ... The Overwhelmingly Large Telescope (OWL) is a conceptual design by the European Southern Observatory organization for a telescope which was intended to have a single aperture of 100 meters in diameter, but was later scaled down to a 60 meter diameter telescope. ... The European Extremely Large Telescope (E-ELT) is an extremely large telescope design proposed for the next-generation European Southern Observatory optical telescope with a mirror diameter of 42 meters. ... The Giant Magellan Telescope is a ground-based telescope planned for completion in 2016. ...

This table does not include all the largest mirrors manufactured; the Steward Observatory Mirror Lab produced the 6.5-metre f/1.25 LOTIS collimator used by Lockheed Martin for vacuum optical testing of other telescopes. LBT on the cover of VMEbus Systems magazine The Large Binocular Telescope (originally named the Columbus Project) is a joint project of the Italian astronomical community (represented by the Istituto Nazionale di Astrofisica (INAF)), the University of Arizona, Arizona State University, Northern Arizona University, the LBT Beteiligungsgesellschaft in Germany (Max... Mount Graham International Observatory (MGIO) is a division of the Steward Observatory and is primarily maintained by the University of Arizona. ... It has been suggested that Arizona Governors Mansion be merged into this article or section. ... 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD (or CE) era. ... The Southern African Large Telescope (SALT) is a 10 metre (~32. ... The South African Astronomical Observatory is an observatory located in Sutherland, South Africa (20° 48´ 38. ... 2005 (MMV) was a common year starting on Saturday of the Gregorian calendar. ... The telescope under construction in 2002. ... The seeing statistics for Roque de los Muchachos Observatory make it the third best location for optical and infrared astronomy after Dome C, Antarctica and Mauna Kea Observatory, Hawaii. ... Canaries redirects here. ... 2006 (MMVI) was a common year starting on Sunday of the Gregorian calendar. ... The Mauna Kea Observatory, an institute of the University of Hawaii, is considered one of the most important land-based observatories in the world for its isolated, unobstructed views of space without interference from man-made light sources. ... The Observatories at Mauna Kea are an independent collection of the worlds premier astronomical research facilities, located on the summit of Mauna Kea on the Big Island of Hawaii, USA. The facilities are located in a 500-acre special land use zone known as the Astronomy Precinct, which... This article or section does not cite its references or sources. ... 1993 (MCMXCIII) was a common year starting on Friday of the Gregorian calendar and marked the Beginning of the International Decade to Combat Racism and Racial Discrimination (1993-2003). ... The Mauna Kea Observatory, an institute of the University of Hawaii, is considered one of the most important land-based observatories in the world for its isolated, unobstructed views of space without interference from man-made light sources. ... The Observatories at Mauna Kea are an independent collection of the worlds premier astronomical research facilities, located on the summit of Mauna Kea on the Big Island of Hawaii, USA. The facilities are located in a 500-acre special land use zone known as the Astronomy Precinct, which... This article or section does not cite its references or sources. ... 1996 (MCMXCVI) was a leap year starting on Monday of the Gregorian calendar, and was designated the International Year for the Eradication of Poverty. ... The Hobby-Eberly Telescope is a 9. ... Aerial view of the McDonald Observatory. ... For other uses, see Texas (disambiguation). ... 1997 (MCMXCVII) was a common year starting on Wednesday of the Gregorian calendar. ... The Subaru at sunset Subaru Telescope (In Japanese: すばる望遠鏡) is the 8. ... The Observatories at Mauna Kea are an independent collection of the worlds premier astronomical research facilities, located on the summit of Mauna Kea on the Big Island of Hawaii, USA. The facilities are located in a 500-acre special land use zone known as the Astronomy Precinct, which... This article or section does not cite its references or sources. ... 1999 (MCMXCIX) was a common year starting on Friday, and was designated the International Year of Older Persons by the United Nations. ... One of the four telescopes that make up the VLT, named Kueyen. ... The European Southern Observatory (ESO) is an international astronomical organisation, composed and supported by ten countries from the European Union plus Switzerland. ... The European Southern Observatory (ESO) is an international astronomical organisation, composed and supported by ten countries from the European Union plus Switzerland and was created in 1962. ... 1998 (MCMXCVIII) was a common year starting on Thursday of the Gregorian calendar, and was designated the International Year of the Ocean. ... One of the four telescopes that make up the VLT, named Kueyen. ... The European Southern Observatory (ESO) is an international astronomical organisation, composed and supported by ten countries from the European Union plus Switzerland. ... The European Southern Observatory (ESO) is an international astronomical organisation, composed and supported by ten countries from the European Union plus Switzerland and was created in 1962. ... 1999 (MCMXCIX) was a common year starting on Friday, and was designated the International Year of Older Persons by the United Nations. ... One of the four telescopes that make up the VLT, named Kueyen. ... The European Southern Observatory (ESO) is an international astronomical organisation, composed and supported by ten countries from the European Union plus Switzerland. ... The European Southern Observatory (ESO) is an international astronomical organisation, composed and supported by ten countries from the European Union plus Switzerland and was created in 1962. ... This article is about the year 2000. ... One of the four telescopes that make up the VLT, named Kueyen. ... The European Southern Observatory (ESO) is an international astronomical organisation, composed and supported by ten countries from the European Union plus Switzerland. ... The European Southern Observatory (ESO) is an international astronomical organisation, composed and supported by ten countries from the European Union plus Switzerland and was created in 1962. ... 2001 (MMI) was a common year starting on Monday of the Gregorian calendar. ... The Gemini Observatory is an astronomical observatory consisting of 8-metre telescopes at two different sites. ... The Observatories at Mauna Kea are an independent collection of the worlds premier astronomical research facilities, located on the summit of Mauna Kea on the Big Island of Hawaii, USA. The facilities are located in a 500-acre special land use zone known as the Astronomy Precinct, which... This article or section does not cite its references or sources. ... 1999 (MCMXCIX) was a common year starting on Friday, and was designated the International Year of Older Persons by the United Nations. ... The Gemini Observatory is an astronomical observatory consisting of 8-metre telescopes at two different sites. ... 2001 (MMI) was a common year starting on Monday of the Gregorian calendar. ... Wikipedia does not yet have an article with this exact name. ... The Fred Lawrence Whipple Observatory is an astronomical observatory owned and operated by Smithsonian Astrophysical Observatory and is their largest field installation outside of their main site in Cambridge, MA. It is located near Amado, Arizona on the slopes of Mount Hopkins. ... It has been suggested that Arizona Governors Mansion be merged into this article or section. ... 1987 (MCMLXXXVII) was a common year starting on Thursday of the Gregorian calendar. ... For album titles with the same name, see 2002 (album). ... The Magellan Telescopes are 6. ... Las Campanas Observatory is an astronomical observatory owned and operated by Carnegie Institution of Washington. ... This article is about the year 2000. ... The Magellan Telescopes are 6. ... Las Campanas Observatory is an astronomical observatory owned and operated by Carnegie Institution of Washington. ... For album titles with the same name, see 2002 (album). ... Zelenchukskaya (Russian: Зеленчукская) is the Caucasus Mountains site of the Special Astrophysical Observatory (Специальная Астрофизическая Обсерватория) of the Russian Academy of Sciences, St Petersburg. ... Zelenchukskaya (Russian: Зеленчукская) is the Caucasus Mountains site of the Special Astrophysical Observatory (Специальная Астрофизическая Обсерватория) of the Russian Academy of Sciences, St Petersburg. ... The Ethnolinguistic patchwork of the modern Caucasus - CIA map Russia Georgia Azerbaijan (Azer. ... 1976 (MCMLXXVI) was a leap year starting on Thursday. ... Large Zenith Telescope The Large Zenith Telescope is big implementation of a special form of [[telescope][telescopes]] that looks into the zenith, that is, straight up. ... Maple Ridge District Municipality in British Columbia, located east of Vancouver, on the Fraser River. ... Motto: Splendor Sine Occasu (Latin: Splendour without diminishment) Official languages English de facto (none stated in law) Flower Pacific dogwood Tree Western Redcedar Bird Stellers Jay Capital Victoria Largest city Vancouver Lieutenant-Governor Iona Campagnolo Premier Gordon Campbell (BC Liberal) Parliamentary representation  - House seats  - Senate seats 36 6 Area... 2003 (MMIII) was a common year starting on Wednesday of the Gregorian calendar. ... The Hale Telescope is the largest telescope at the Palomar Observatory. ... Palomar Observatory is a privately-owned observatory located in San Diego County, California, 90 miles (145 km) southeast of Mount Wilson Observatory, on Palomar Mountain. ... Official language(s) English Capital Sacramento Largest city Los Angeles Area  Ranked 3rd  - Total 158,302 sq mi (410,000 km²)  - Width 250 miles (400 km)  - Length 770 miles (1,240 km)  - % water 4. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... This article is about the telescope on the Canary Islands. ... The seeing statistics for Roque de los Muchachos Observatory make it the third best location for optical and infrared astronomy after Dome C, Antarctica and Mauna Kea Observatory, Hawaii. ... Canaries redirects here. ... 1987 (MCMLXXXVII) was a common year starting on Thursday of the Gregorian calendar. ... The Southern Astrophysical Research Telescope (SOAR) is located on Cerro Pachón, Chile, and operated by a consortium including Michigan State University, the University of North Carolina at Chapel Hill, the National Optical Astronomy Observatory and the country of Brazil. ... For album titles with the same name, see 2002 (album). ... Steward Observatorys main office is located on the University of Arizona campus. ... Lockheed/BAE/Northrop F-35 Lockheed Trident missile C-130 Hercules; in production since the 1950s, now as the C-130J Lockheed Martin (NYSE: LMT) is an aerospace manufacturer formed in 1995 by the merger of Lockheed Corporation with Martin Marietta. ...

See also

• List of largest optical refracting telescopes

Paris 1900 exposition refractor. ...

External links

• List of large reflecting telescopes
• The World's Largest Optical Telescopes