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Seeing the Universebefore 1610 - naked eye astronomy1608 - Galileo's hand held telescopes 1673 - Hevelius' long telescopes 1780 - Herschel's large reflectors 1838 - Meridian Circles 1845 - Rosse's Leviathian 1890 - Barnard's camera 1923 - The Hooker 100 inch 1948 - The Palomar 200 inch 1990 - The Hubble Space Telescope 1998 - The Keck 10 metre pair 2000 - The VLT array 2015 - Planning for the JWST 2020? - Planning the OWL How much further? In 1923, Edwin Hubble used the 100 inch Hooker telescope to resolve stars and measure the distance to the Andromeda spiral nebula. A long standing problem was settled. Incontrovertible evidence that spiral nebulae are extremely large, very distant star clusters like the Milky Way galaxy was finally obtained. Mount Wilson Observatory |
The 100 inch Hooker Telescope (Mount Wilson Observatory) |