Advanced Fiber-Optic Echelle spectrometer (AFOE) Anglo-Australian Observatory (AAO) Anglo-Australian Telescope (AAT) Algonquin Radio Observatory Allegheny Observatory Apache Point Observatory (APO) Arcetri Astrophysical Observatory Arecibo Observatory Arecibo Radio Telescope Argus Radio Telescope Asiago Astrophysical Observatory Astronomical Nulling Interferometer Atacama Large Millimeter Array (ALMA) Australian National Radio Observatory (ANRO) Australia Telescope National Facility (ATNF) Allen Telescope Array (ATA) Big Bear Solar Observatory Big Ear Bol'shoi Teleskop Azimultal'nyi Byurakan Astrophysical Observatory Caltech Submillimeter Observatory Canada-France-Hawaii Telescope (CFHT) Carnegie Observatories Center for Astronomical Adaptive Optics (CAAO) Cerro Tololo Inter-American Observatory (CTIO) Coralie Crimean Astrophysical Observatory Dominion Astrophysical Observatory (DAO) Effelsberg Radio Observatory Elodie Emilie ESO Coudé Échelle Spectrometer European Northern Observatory (ENO) European Southern Observatory (ESO) extremely large telescope Follow-Up Detection Device Gemini Observatory Giant Magellan Telescope Global Oscillation Network Group (GONG) Gran Telescopio Canarias (GTC) Green Bank Green Bank Telescope Griffith Observatory Hale Observatories Hale Telescope Harvard College Observatory (HCO) Harvard-Smithsonian Center for Astrophysics (CfA) Harvard-Smithsonian Radio Telescope Hat Creek Radio Observatory Haut-Provence Observatory (Observatoire de Haut-Provence) High Resolution Échelle Spectrometer (HIRES) Haystack Observatory Hobby-Eberly Telescope (HET) Hubble Space Telescope (HST) Infra-Red Telescope Facility (IRTF) James Clerk Maxwell Telescope (JCMT) Jodrell Bank Observatory Joint Astronomy Centre (JAC) Keck Interferometer Keck Observatory Keck Telescopes Kitt Peak National Observatory (KPNO) Kitt Peak 12-Meter Telescope Kuiper Airborne Observatory La Silla Observatory Large Binocular Telescope (LBT) Large Millimeter Telescope (LMT) Large Southern Array (LSA) Las Campanas Observatory Leonard Euler Telescope Leuschner Observatory Lick Observatory LINEAR (Lincoln Near Earth Asteroid Research) program Lovell Telescope Lowell Observatory MACHO Project Magellan Telescope Multichannel Astrometric Photometer (MAP) Multichannel Astrometric Photometer and Spectrometer (MAPS) Mauna Kea observatories Mayall Telescope McDonald Observatory McMath-Pierce Solar Telescope Minor Planet Center (MPC) Multi-Channel Spectrum Analyzer (MCSA) Meudon Observatory Mid-Infrared Large-well Imager (MIRLIN) Mopra Telescope Mount Graham International Observatory (MGIO) Mount Stromlo and Siding Spring Observatories Mount Wilson Observatory Multiple Mirror Telescope (MMT) National Optical Astronomy Observatories (NOAO) National Radio Astronomy Observatory (NRAO) National Solar Observatory (NSO) Near-Earth Asteroid Tracking (NEAT) Nobeyama Radio Observatory (NRO) Oak Ridge Observatory observatory Ohio State University Radio Observatory Optical Gravitational Lensing Experiment (OGLE) Optical Very Large Array (OVLA) OverWhelmingly Large Telescope (OWL) Owens Valley Radio Observatory (OVRO) Palomar Observatory Palomar Testbed Interferometer Paranal Observatory Paris Observatory Parkes Observatory Parkes Radio Telescope Paul Wild Observatory Pic-du-Midi Observatory Probing Lensing Anomalies Network (PLANET) Roque de los Muchachos Observatory (ORM) Royal Greenwich Observatory Sacramento Peak Observatory Smithsonian Astrophysical Observatory Siding Spring Observatory SOFIA (Stratospheric Observatory for Infrared Astronomy) South African Astronomical Observatory (SAAO) South African Large Telescope (SALT) Spacewatch Project Special Astrophysical Observatory Sproul Observatory Sternberg State Astronomical Institute Steward Observatory Subaru Telescope Submillimeter Array Submillimeter Telescope Observatory (SMTO) Sudbury Neutrino Observatory (SNO) Super-Kamiokande Targeted Search System United Kingdom Infrared Telescope (UKIRT) United Kingdom Schmidt Telescope (UKST) U.S. Naval Observatory Very Large Array (VLA) Very Large Telescope (VLT) Very Long Baseline Array (VLBA) Visible and Infrared Telescope for Astronomy (VISTA) Vulcan Camera Project Westerbork Synthesis Radio Telescope (WSRT) Whipple (Fred Lawrence) Observatory William Herschel Telescope WIYN Telescope WorldWide Telescope Yerkes Observatory Related category OPTICS AND OPTICAL PHENOMENA