Chronology of Telescopes, Observatories, and Observing Technology

1608 Hans Lippershey tries to patent an optical refracting telescope.
1609 Galileo Galilei builds his first optical refracting telescope.
1641 William Gascoigne invents telescope cross hairs.
1661 James Gregory proposes an optical reflecting telescope.
1668 Isaac Newton constructs the first optical reflecting telescope.
1733 Chester Moor Hall invents the achromatic lens refracting telescope.
1758 John Dolland reinvents the achromatic lens.
1789 William Herschel finishes a 49-inch optical reflecting telescope, located in Slough, England.
1840 J.W. Draper invents astronomical photography and photographs the Moon.
1845 Lord Rosse finishes the Birr Castle 72-inch optical reflecting telescope, located in Parsonstown, Ireland.
1872 Henry Draper invents astronomical spectral photography and photographs the spectrum of Vega.
1890 Albert Michelson proposes the stellar interferometer.
1892 George Hale finishes a spectroheliograph, allows the Sun to be photographed in the light of one element only.
1897 Alvan Clark finishes the Yerkes 40-inch optical refracting telescope, located in Williams Bay, Wisconsin.
1917 Mount Wilson 100-inch optical reflecting telescope begins operation, located in Mount Wilson, California.
1930 Bernard-Ferdinand Lyot invents the coronagraph.
1930 Karl Jansky builds a 30-meter long rotating aerial radio telescope.
1933 Bernard-Ferdinand Lyot invents the Lyot filter.
1934 Bernhard Schmidt finishes the first 14-inch Schmidt optical reflecting telescope.
1936 Palomar 18-inch Schmidt optical reflecting telescope begins operation, located in Palomar, California.
1937 Grote Reber builds a 31-foot radio telescope.
1947 Bernard Lovell and his group complete the Jodrell Bank 218-foot non-steerable radio telescope.
1949 Palomar 48-inch Schmidt optical reflecting telescope begins operation, located in Palomar, California.
1949 Palomar 200-inch optical reflecting telescope begins regular operation, located in Palomar, California.
1957 Bernard Lovell and his group complete the Jodrell Bank 250-foot steerable radio telescope.
1957 Peter Scheuer publishes his P(D) method for obtaining source counts of spatially unresolved sources.
1960 Martin Ryle tests Earth rotation aperature synthesis.
1960 Owens Valley 27-meter radio telescopes begin operation, located in Big Pine, California.
1963 Arecibo 300-meter radio telescope begins operation, located in Arecibo, Puerto Rico.
1964 Ryle 1-mile radio interferometer begins operation, located in Cambridge, England.
1965 Owens Valley 40-meter radio telescope begins operation, located in Big Pine, California.
1967 First VLBI images-183 km baseline.
1969 Observations start at Big Bear Solar Observatory, located in Big Bear, California.
1970 Cerro Tololo 158-inch optical reflecting telescope begins operation, located in Cerro Tololo, Chile.
1970 Kitt Peak National Observatory 158-inch optical reflecting telescope begins operation, located near Tucson, Arizona.
1974 Anglo-Australian 153-inch optical reflecting telescope begins operation, located in Siding Springs, Australia.
1975 Gerald Smith, Frederick Landauer, and James Janesick use a CCD to observe Uranus, first astronomical CCD observation.
1978 Multiple Mirror 176-inch equivalent optical/infrared reflecting telescope begins operation, located in Amado, Arizona.
1979 UKIRT 150-inch infrared reflecting telescope begins operation, located at Mauna Kea, Hawaii.
1979 Canada-France-Hawaii 140-inch optical reflecting telescope begins operation, located at Mauna Kea, Hawaii.
1980 Completion of construction of the VLA, located in Socorro, New Mexico.
1993 Keck 10-meter optical/infrared reflecting telescope begins operation, located at Mauna Kea, Hawaii.