List of large optical telescopes
Introduction This is a '''list of large optical telescopes'''. For telescopes larger than 3 meters in aperture see List of largest optical reflecting telescopes. This list combines large or expensive reflecting telescopes from any era, as what constitutes famous reflector has changed over time. In 1900 a 1-meter reflector would be among the largest in the world, but by 2000, would be relatively common for professional observatories.
Large reflectors and catadioptric ''See List of largest optical reflecting telescopes for continuation of list to larger scopes'' Name  Image  Aperture  Mirrortype   Nationality / Sponsors  Site  Built  Harlan J. Smith Telescope  50px   Single  USA  McDonald Observatory, Texas, USA  1969  UBC-Laval LMT    Liquid Canada  Vancouver, British Columbia, Canada  1992–2016 Shajn 2.6m "Crimean 102 in." 50px    Single    Crimean Astrophysical Obs., Russia/Ukraine  1961 VLT Survey Telescope (VST)   50px   Single  Italy + ESO countries  Paranal Observatory, Antofagasta Region, Chile  2007  BAO 2.6     Single    Byurakan Astrophysical Obs., Mt. Aragatz, Armenia  1976 Nordic Optical Telescope (NOT) 50px    Single  Denmark, Sweden, Iceland, Norway, Finland ORM, Canary Islands, Spain  1988 Javalambre Survey Telescope (JAST/T250)       Single  International  Javalambre Observatory, Spain (Z32) TBA Isaac Newton Telescope (INT)  50px    Single   UK   ORM, Canary Islands, Spain (RGO, England, UK until '79)  1984 Irenee du Pont Telescope  50px    Single  USA  Las Campanas Observatory, Coquimbo Region, Chile 1976 Hooker 100-Inch Telescope  30px    Single  USA  Mt. Wilson Observatory, California, USA  1917 Kawkasskaja gornaja observatory GAISCH MGU     Single  Russia  , Russia  2014 SOFIA  50px    Single  USA + Germany  Boeing 747SP (mobile, USA)  2007 Sloan DSS     Single  USA  Apache Point Observatory, New Mexico, USA  1997 Hiltner Telescope  50px    Single  USA  MDM Observatory (Kitt Peak), Arizona, USA  1986 Thai National Telescope (TNT)     Single   Thailand + SEAAN  Thai National Observatory, Doi Inthanon, Thailand  2013 Lijiang     Single   China  Yunnan Astronomical Observatory, China  2008Hubble (HST)   50px   Single  NASA+ESA  Low Earth orbit  19902.4-meter SINGLE Telescope  50px   Single  USA    Magdalena Ridge Observatory, New Mexico, USA  2006/2008 Automated Planet Finder  50px    Single  USA   Lick Observatory, California, USA  2010 Vainu Bappu       Single  India  Vainu Bappu Observatory, Tamil Nadu, India  1986Aristarchos     Single  ESO Countries+ Greece  National Observatory of Athens, Mt. Helmos, Greece    2004 WIRO 2.3  50px    Single IR  USA  Wyoming Infrared Observatory, Wyoming, USA 1977 ANU 2.3m ATT     Single   Siding Spring Observatory, New South Wales, Australia  1984Bok Telescope (90-inch)  50px    Single  USA  Kitt Peak National Observatory, Arizona, USA  1969 University of Hawaii 2.2 m (UH88)  50px    Single  USA  Mauna Kea Observatories, Hawaii, USA  1970 MPIA-ESO (ESO-MPI)    Single  West Germany  La Silla Observatory, Coquimbo Region, Chile   1984 MPIA-CAHA 2.2m 50px    Single  West Germany  Calar Alto Observatory, Almería, Spain  1979  Xinglong 2.16m     Single  PRC (China)  Xinglong, China  1989 Jorge Sahade 2.15m  50px    Single     Leoncito Astronomical Complex, San Juan Province, Argentina   1987  INAOE 2.12 (OAGH)      Single  Mexico + USA  Guillermo Haro Observatory, Sonora, Mexico   1987  UNAM 2.12   50px    Single   National Astronomical Observatory, Baja California, Mexico  1979 Fraunhofer-Teleskop  50px     Ger 	 	Observatorium Wendelstein, Deutschland 	2012 Kitt Peak 2.1-meter  50px    Single  USA  Kitt Peak National Observatory, Arizona, USA  1964 Otto Struve Telescope 50px     Single  USA  McDonald Observatory, Texas, USA  1939 T13 Automated Spectroscopic Telescope    Single  USA (NASA, NSF, & TSU)  Fairborn Observatory, Arizona, USA  2003 Himalayan Chandra Telescope (HCT)   50px   Single    Indian Astronomical Observatory, India  2000 Alfred Jensch Teleskop   50px   Single  Ger  Karl Schwarzschild Observatory, Germany  1960 Carl Zeiss Jena    Single     Shamakhi Astrophysical Obs., Azerbaijan  1966 Ondřejov 2-m   50px   Single  Czechoslovakia  Ondřejov Observatory, Czech  1967 Ritchey-Chretien-Coude (RCC)   50px   Single  Bulgaria  Rozhen Observatory, Bulgaria  1984 Carl Zeiss Jena     Single  Ukraine, Russia  , Russia  1995 Bernard Lyot Telescope   50px   Single  France   Pic du Midi Obs., France  1980Liverpool Telescope   50px  Single  UK  ORM, Canary Islands, Spain  2003Faulkes Telescope North   30px   Single  UK  Haleakala Observatory, Hawaii, USA  2003Faulkes Telescope South    Single  UK Siding Spring Observatory, New South Wales, Australia 2001 NAYUTA    Single  Japan Nishi-Harima Observatory, Hyogo, Japan  2004 MAGNUM    Single IR  Japan Haleakala Observatory, Hawaii, USA  2001–2008
Selected telescopes below about 2 meters aperture A non-comprehensive non-exclusionary list of telescopes one yard to less than 2 metres in aperture. Name  Aperture m Aper. in  Mirror type   Nationality of Sponsors  Site  Built OHP 1.93  1.93 m  76″ Single   France   Haute-Provence Observatory, France  1958 74 inch (1.9 m) Radcliffe Telescope  1.88 m  74″  Single    South African Astronomical ObservatorySutherland (1974 – present) Radcliffe Observatory, Pretoria, South Africa (1948– 1974)  1950 1.88 m telescope   1.88 m  74″  Single  Japan Okayama Astrophysical Observatory, Japan  1960 DDO 1.88 m   1.88 m    74″   Single  Canada  David Dunlap Observatory, Ontario, Canada  1935  74" reflector  1.88 m  74″  Single  Australia Mount Stromlo Observatory, Australian Capital Territory, Australia  1955–2003 Kottamia telescope 1.88 m 1.88 m  74″  Single  Egypt   Egypt  1960  SETI Optical Telescope   1.83 m  72″  Single   USA  Oak Ridge Observatory, Massachusetts, USA  2006Vatican Advanced Technology Telescope (VATT)  1.83 m  72″  Single  Vatican City   Mount Graham International Observatory, Arizona, USA  1993 72-Inch Perkins Telescope  1.83 m  72″  Single   USA  Lowell Observatory, Arizona, USA  1964 Plaskett telescope  1.83 m  72″  Single  Canada  Dominion Astrophysical Observatory, British Columbia, Canada  1918Leviathan of Parsonstown  1.83 m  72″  Metal  Great Britain  Birr Castle; Ireland''Historical recreation''  1845Copernico 1.82 m 1.82 m  72″  Single  Italy  Asiago Observatory, Italy  1976 1.8 meter telescope  1.80 m  71″  Single  China  Gaomeigu site of Yunnan Astronomical Observatory, China  2009 Pan-STARRS PS1  1.8 m  71″  Single  Germany, Taiwan, US, UK  Haleakala Observatory, Hawaii, USA  2007 VLT Auxiliary Telescopes (1.8 x 4)  1.80 m  71″  Single  Europe  Paranal Observatory, Antofagasta Region, Chile  2006 Spacewatch 1.8-meter Telescope  1.80 m  71″  Single  USA Kitt Peak National Observatory, Arizona, USA 2001 1.8m Ritchey Cretien reflector  1.80 m  72″  Single  Korea   Bohyunsan Optical Astronomy Observatory, Korea  1996Sandy Cross Telescope  1.80 m  71″  Single  Canada  Rothney Astrophysical Observatory, Alberta, Canada  1996 Largest amateur telescope in 2013  1.778 m  70″  Single  USA  Utah, USA (mobile)  2013 69-inch Perkins Telescope  1.75 m    69″  Single  USA  Perkins Observatory, Ohio, USA  1931–1964  1.65 m telescope  1.65 m  65″  Single      Molėtai Astronomical Obs., Lithuania  1991McMath–Pierce solar telescope  1.61 m  63″  Single  USA  Kitt Peak National Observatory, Arizona, USA  1962 BBO NST  1.60 m  63″  Solar  USA  Big Bear Solar Observatory, California, USA  2009 AZT-33  1.60 m  63″  Single    , Siberia, Russia  1981 1.6 m Perkin Elmer  1.60 m  63″  Single  Brazil  Pico dos Dias Observatory, Minas Gerais, Brazil  1981 Observatoire du Mont-Mégantic  1.60 m  63″  Single IR  Canada  Mont Mégantic Observatory, Québec, Canada  1978 1.56m optical telescope  1.56 m  62″  Single  China  Shanghai Astronomical Observatory, China  1988 Kaj Strand Telescope 1.55 m  61″  Single  USA  USNO Flagstaff Station, Arizona, USA  1964 61" Kuiper Telescope  1.55 m  61″  Single  USA  Steward Observatory, Arizona, USA  1965 Oak Ridge Observatory 61" reflector  1.55 m  61″  Single  USA   Oak Ridge Observatory, Massachusetts, USA  1933  Estación Astrofísica de Bosque Alegre  1.54 m  60.6″ Single   Argentina  Estación Astrofísica de Bosque Alegre, Argentina   1942 Toppo Telescope No.1 (TT1)   1.537 m  60.5″  Single (R/C)  Italy  Astronomical Observatory of Castelgrande, Italy  2008 Harvard 60-inch Reflector   1.524 m  60″  Single  USA  Harvard College Observatory, Massachusetts, USA  1905–1931 Hale 60-Inch Telescope  1.524 m 60″  Single  USA  Mt. Wilson Observatory, California, USA  1908 Dunn Solar Telescope ex-VTT  1.524 m 60″  Single  USA  National Solar Observatory, New Mexico, USA1969 FLWO 1.5m Tillinghast  1.52 m 60″  Single  USA  F. L. Whipple Observatory, Arizona  1994 Telescopio Carlos Sánchez (TCS)  1.52 m  60″  Single  UK + Spain  Teide Observatory, Canary Islands, Spain  1971 OHP 1.52  1.52 m  60″ Single   France   Haute-Provence Obs., France  1967  Mt. Lemmon 60" Dahl-Kirkham Telescope  1.52 m  60″  Single IR  USA  Steward Obs. (Mt. Lemmon), Arizona, USA 1970 Steward Observatory 60" Cassegrain Telescope  1.52 m  60″  Single  USA  Steward Obs. (Mt. Lemmon), Arizona, USA 1960s OAN 1.52 m   1.52 m  60″  Single  Spain  Calar Alto Observatory, Almería, Spain  1970s 1.52 m G.D. Cassini  1.52 m  60″ Single   Italy  Mount Orzale, Italy   1976 Leopold Figl Observatory   1.50 m  59″  Single  Austria   Mitterschöpfl, Vienna Woods Biosphere Reserve, Austria  1970 TIRGO Gornergrat Infrared Telescope   1.50 m  59″  Single IR  Italy + Switzerland  Hochalpine Forschungsstation Jungfraujoch und Gornergrat, Alps, Switzerland  1979–2005 AZT-22  1.50 m 59″  Single   Mount Maidanak, Uzbekistan  1972 RTT150 (ex-AZT-22)   1.50 m 59″  Single  Russia + Turkey  TÜBİTAK National Obs., Turkey   AZT-20   1.50 m  59″  Single   Assy-Turgen Observatory, Kazakhstan   AZT-12  1.50 m 59″  Single  Estonia  Tartu Observatory, Estonia  1976 Hexapod-Telescope (HPT)  1.50 m 59″  Single  Germany  Cerro Armazones Observatory, Antofagasta Region, Chile  2005 OSN 1.5m (Nasmyth)  1.50 m 59″  Single  Spain  Sierra Nevada Observatory, Granada, Spain   Persona-1 (C.2441) 1.50 m  59″ Korsch  Russia  Earth Orbit (SSO, ''terrestrial viewing'')  2008 GREGOR solar/night telescope  1.50 m  59″  Single  GermanyTeide Observatory, Tenerife, Spain  2012 IRSF 1.4m  1.40 m   Single  Sutherland, South Africa Astronomical Observatory  2000 TCC  1.40 m   Single   38°10'12"N 20°36'36"E  2010 ESO Coudé Auxiliary Telescope (CAT)  1.40 m   Single  La Silla, Chile  1981 SkyMapper  1.35 m  53.15″  Single  Australia  Siding Spring Observatory, New South Wales, Australia  2008 USNOFS 1.3m  1.30 m 51″  Single  USA  USNO Flagstaff Station, Arizona, USA   1998Skalnaté pleso Observatory1.30 mSingleSlovakiaSkalnaté pleso Observatory, Astronomical Institute of Slovak Academy of Sciences, Slovakia2014 Skinakas Obs. 1.3m1.30 mSingleGreeceSkinakas Observatory, Island of Crete, Greece1995McGraw-Hill Telescope  1.27 m  50″  Single  USA  MDM Observatory, Arizona, USA (1975 – present)Dexter, Michigan, USA (1969–1975)  1969 1.26m infrared telescope  1.26 m  49.5"  Single China  Xinglong Station, China  1991 Herschel 40-foot(1.26 m d.)    1.26 m  49.5″  Metal  Great Britain + Ireland   Observatory House; England   1789–1815  AZT-11  1.25 m  49″  Single    Abastumani Observatory, Rep. of Georgia  1976  AZT-11  1.25 m  49″  Single    Crimean Astrophysical Obs., Russia/Ukraine  1981  MPIA 1.2  1.23 m  48.4″  Single  West Germany+Spain  Calar Alto Obs., Alemíra, Spain  1975 T-122  1.22 m  48″Schmidt  Turkey ÇOMÜ Ulupınar Observatory, Çanakkale, Turkey  2002  Babelsberg Zeiss   1.22 m  48″ Single  Germany Babelsberg Observatory, Berlin, Germany  1924–1947 Galileo 1.22 m  1.22 m  48″ Single  Italy  Asiago Observatory, Italy  1942 Samuel Oschin telescope   1.22 m  48″  Schmidt  USA  Palomar Observatory, California, USA  1948 Great Melbourne Telescope  1.22 m  48″  Metal  Great Britain  Melbourne Observatory, Victoria, Australia  1878–1889 William Lassell 48-inch  1.22 m   48″  Metal  Great Britain  Malta  1861–1865  Barabarella (OMI 48 inch)  1.22 m   48″  Single  USA  Lowrey Observatory, Texas, USA   2008 Oskar-Lühning Telescope  1.20 m  47″  Single  Germany Hamburg Observatory, Germany  1975 Leonhard Euler Telescope   1.20 m  47″  Single  Switzerland   La Silla Observatory, Coquimbo Region, Chile  1998 Mercator Telescope  1.20 m  47″  Single  Belgium+Switzerland  ORM, Canary Islands, Spain  2001 Hamburg Robotic Telescope (HRT)  1.20 m  47″  Single  Germany Hamburg-Bergdorf Obs., Germany  2002 UK Schmidt Telescope  1.20 m  47″  Schmidt  UK  Siding Spring Observatory, New South Wales, Australia  1973 GeoEye-1  1.10 m  43.3″  Single  USA  Earth Orbit ''(terrestrial viewing)''  2008 Hänssgen's reflector  1.07 m  42″  Single  Germany  Mobile (~Germany)  2002 KLENOT  1.06 m  42″  Single  Czech Republic  Kleť Observatory, Czech Republic  2002 Nickel Telescope  1.02 m  40″  Single  USA  Lick Observatory, California, USA  1979 UTAS 40-inch  1.02 m  40"  R/C  Australia  Mount Canopus, Tasmania, Australia  1973 George Ritchey 40-inch (1 m)  1.02 m  40″  R/C  USA  USNO Flagstaff Station, Arizona, USA (Washington, D.C. until 1955) 1934 Yerkes "41-inch"  1.02 m  40″ Single  USA  Yerkes Observatory, Wisconsin, USA  1968 ZIMLAT  1.00 m  39.4″  Single  Switzerland  Zimmerwald Obs., Switzerland  1997 Meudon Observatory 1m  1.00 m  39.4″  Single  France  Meudon Observatory/ Paris Observatory  1891  Lulin One-meter Telescope (LOT)  1.00 m  39.4"  Single Taiwan  Lulin Observatory, Taiwan  2002 Vihorlat national telescope  1.00 m  39.4"  single  Slovakia  Astronomical observatory on Kolonický mountain pass, Slovakia Wise one-meter telescope  1.00 m  39.4"  single  Israel  Wise Observatory, Israel  1973 SAAO 1-meter Elizabeth Telescope  1.00m  39.4″  Single  South Africa  South African Astronomical ObservatoryCape Town, South Africa (1962-c.1975)Sutherland, South Africa (c.1975–present) 1962 Near-Earth Object Survey Telescope (NEOST)  1.00 m  39.4"  Single China  Purple Mountain Observatory, China  2006RT 1.00 m   1.00 m   39.4″     TÜBİTAK National Observatory OGS Telescope 1.00 m  39.4″  Single  European Space Agency countries  Teide Observatory, Canary Islands, Spain  1995Jacobus Kapteyn Telescope  1.00 m  39.4″  Single  UK + Netherlands  Isaac Newton Group, Canary Islands, Spain  1984 ''Zeiss di Merate'' (1m reflector)   1.00 m  39.4″  Single Kingdom of Italy  Merate Obs., Merate, Italy  1926 T1M   1.00 m  39.4″  Cassegrain  France  Lyon Observatory, Saint-Genis-Laval, France  1970s  Zeiss 1m reflector   1.00 m  39.4″  Single  Belgium  Royal Obs., Uccle, Belgium   Hamburg ''Spiegelteleskop'' (1m reflector) 1.00 m  39.4″  Single  Deutsches Reich (Germany) Hamburg-Bergdorf Obs., Germany  1911Kepler Mission telescope  0.95 m  37.4″  Single  USA  Earth-trailing Orbit (Heliocentric)  2009 James Gregory Telescope  0.94 m  37"  Single  Great Britain  University of St Andrews, Scotland, UK  1962Kuiper Airborne Obs. (KAO)  0.914 m  36″  Single  USA   C-141 (mobile)   1974–1995 Crossley Reflector  0.914 m  36″  Single  US+UK  Lick Observatory, California, USA  1896  A.A. Common Reflector  0.914 m  36″  Single  Great Britain  Great Britain   1880–1896 Rosse 36-inch Telescope  0.914 m  36″   Metal  Great Britain  Birr Castle; Ireland 1826 SMARTS 0.9m Telescope  0.914 m  36″  Single  USA, SMARTS  Cerro Tololo Inter-American Observatory, Coquimbo Region, Chile  1965 Spacewatch 0.9m Telescope 0.914 m  36″  Single USA Steward Observatory enclave at Kitt Peak National Observatory, Arizona, USA  Contracted 1915, Completed 1921 Yapp telescope  0.914 m  36″  Single  U.K.  Royal Observatory, Greenwich+Herstmonceux   1934-1990
Selected telescopes below about 1 meter/yard aperture  Name  Aperture m Aper. in  Type   Nationality of Sponsors  Site  Built/Used Hopkins Ultraviolet Telescope  0.90 m  35.4″  Single UV  USA  Earth Orbit  1990, 1995 Potsdam Great Refractor (double refractor)  0.80 m   31.5 ″  Doublet  Germany  Potsdam, Germany  1899  50px Optical Ground Station Oberpfaffenhofen   0.80 m   31.5 ″  R/C  Germany  Oberpfaffenhofen, Germany  2022  Pine Mountain Observatory 32"  0.82 m 32"  Single  USA  Pine Mountain Observatory, Pine Mountain, Oregon. 6300 feet elevation. 1970 IAC800.82 m32"SingleSpainTeide Observatory, Canary Islands, Spain1993 JAST/T80   0.80 m  Single    Javalambre Observatory, Spain (Z32)  Joan Oró telescope  0.80 m 32"  R/C  Spain  Montsec Astronomical Observatory, Catalonia. 5150 feet elevation. 2008  UMBC Observatory  0.80 m 32"  R/C  United States  University of Maryland, Baltimore County, Baltimore, MD. 200 feet elevation  1999 Astron  0.80 m   31.5″  Single UV  CCCP + France  Earth orbit  1983–1989 Ruisinger  0.762 m  30″  Single-Newtonian   USA – ASKC   Powell Observatory; Louisburg, Kansas 1985 Obsession Telescopes #102  0.762 m  30″  Single   USA  Omaha, Nebraska (mobile)  1993 AKARI (ASTRO-F)  0.685 m  27″  Single IR   Japan + Misc. Earth Orbit   2006-2011 William Lassell 24-inch  0.61 m  24″  Metal   Great Britain   Liverpool, England 1845 Infrared Space Observatory  0.60 m  23.5″ Single IR (2.4 to 240)  European Space Agency  Earth orbit (GEO)  1995–1998 TRAPPIST   0.60 m  23.5″ Single  Belgium  La Silla Observatory, Coquimbo Region, Chile  2010  IRAS    0.57 m  22.44″  Single IR  USA + UK + The Netherlands  Earth orbit  1983 Antarctica Schmidt telescopes (AST3-1)  0.50 m  19.7″  Single  China  Antarctic Kunlun Station  2012 Mars Reconnaissance OrbiterHiRISE  0.50 m  19.7″  R/C  USA  Mars orbit  2005TacSat-2 0.50 m  19.7″  R/C  USA  Earth orbit (''terrestrial viewing'')  2006-2011 Uppsala Southern Schmidt Telescope  0.50 m  19.7″  Schmidt  Multiple  Sweden / Australia  1956-2013 Ege University- A48 Reflecting Cassegrain telescope  0.48 m  18.9″  Single  Turkey  Ege University Observatory, Izmir, Turkey  1968 Herschel 20-foot (0.475 m d.) 0.475 m  18.5″  Metal  Great Britain  Observatory House; England 1782 Dutch Open Telescope (DOT)  0.45 m  17.7″  Solar  Denmark  ORM, Canary Islands   1997 Explorer 57 (IUE)  0.45 m  17.7″  UV  US+UK+ESA Countries   Earth orbit (GEO)  1978–1996University of Rochester Telescope Project 0.40 m  16″  R/C  USA  Rochester NY (mobile)  2011 Armagh 15- inch Grubb Reflector  0.38 m  15″  Metal  Great Britain    Armagh Observatory, Northern Ireland   1835TacSat-3  0.35 m  14″   R/C  USA  Earth orbit (''terrestrial viewing'')   2009-2012Mars Global SurveyorMOC  0.35 m  13.8″   R/C  USA  Mars Orbit  1996–2006JHS Meade0.31 m12″S/CGermanyNEO (Near Earth Objects)2009XMM-NewtonUV camera 0.30 m  11.9″   Single UV  ESA Countries  Earth orbit  1998SWIFT UVOT  0.30 m  11.9″   Single UV US+ UK+Italy  Earth orbit  2004Hipparcos  0.29 m  11.4″  Schmidt  European Space Agency  Earth orbit (GTO)   1989–1993CoRoT  0.27 m   10.6″  afocal  France + ESA  Earth orbit  2007 Centre for Basic Space Science Optical Telescopes  0.25 m  9.84″  Single  Nigeria  NASRDA-CBSS Observatory, Nsukka  2006Astronomical Netherlands Satellite   0.22 m  8.7″  Single UV  The Netherlands & USA  Earth Orbit  1974–1976 New HorizonsLORRI  0.208 m   8.2″  R/C  USA  Space (33+ AU from Earth)  2006 Lunar Reconnaissance Orbiter LROC-NAC  0.195 m  7.68″  Reflector  USA  Lunar orbit  2009 Hadley's Reflector  0.15 m  6″  Metal  Great Britain  England (mobile)  1721 Chinese Small Telescope Array (CSTAR)  0.145 m  6″  Single  China  Antarctic Kunlun Station  2008 University of Tokyo PRISM  0.10  m  3.9″  Single  Japan  Earth Orbit (''terrestrial viewing'')   2009 Newton's reflector 0.033 m  1.3″  Metal  Great Britain  England (mobile)  1669 MESSENGER MDIS-WAC  0.03 m  1.18″  Lens  USA  Space (Mercury orbit)  2004 MESSENGER MDIS-NAC  0.025 m  0.98″  R/C  USA  Space (Mercury orbit)  2004 Dawn Framing Camera (FC1/FC2)  0.02 m  0.8″  Lens  Germany + USA  Space (Asteroid belt)   2007
See also * Lists of telescopes
References