Galileo’s Refracting Telescope. George Ellery Hale remains today among the greatest astronomers of all time. Hale's vision for large telescopes and Palomar Observatory. The mirror would be designed and built by the optician George W. Ritchey, whom Hale had hired in 1896 to work at Yerkes. Discoveries & Observations. Hale in preadolescence became a precocious dabbler in science, making observations with microscopes and telescopes. In 1914, Hale and his colleagues found that sunspots in northern and southern hemispheres reverse polarity every 11 years. NY 10036. He used the spectrograph installed on the Snow for analyzing the Sun’s light and the behavior of the spectral lines of the elements in the Sun’s atmosphere. At age 24, Hale agreed to become an associate professor of astrophysics at the University of Chicago, while keeping an eye on what he really wanted — getting the use of a big telescope. 82 inch 210 cm 2,070 m … But, as Walter S. Adams noted, “In 1910, after six years of active and productive work, the first shadows of physical illness began to fall across Hale’s life.” The pressure of the relentless search for funds was taking a considerable toll on Hale’s health. While photographing the NGC 253 … Saint-Gobain agreed to absorb the loss for the rejected disk and to try again, and Hale could only wait anxiously for more news from France. 1919: Nebulae discoveries (1919 - 1923). • Mount Wilson Observatory website, numerous histories, www.mtwilson.edu. George Ellery Hale was not satisfied with the record-breaking 100-inch Hooker telescope - he wanted to build a telescope twice as large. The sound-bite description of Hale is that he conceived and developed the world’s largest telescopes four times in succession — Yerkes Observatory (40-inch refractor), Mount Wilson Observatory (60-inch reflector, 100-inch reflector) and Palomar Observatory (200-inch reflector). Hale also persuaded the Carnegie Institution to donate funding for the construction of a 60-inch reflector. The Palomar Observatory in Southern California, the home of the iconic Hale telescope, was a powerhouse of astronomical discoveries for many years. The other was a 100-inch (2.54 meters) telescope that was completed in 1917. In late 2012, a … University of Chicago Photographic Archive. While once the 200-inch telescope was in an area that was fairly shielded from the effects of light pollution, decades later the sprawling southern California population growth — and accompanying lights — makes it difficult for some astronomical observations. Our visiting Palomar page has the information on visiting hours and travel to the Observatory. Get breaking space news and the latest updates on rocket launches, skywatching events and more! The twin 10-meter Keck telescope … 200 inch 508 cm 1713 m (5620 ft) 1948 George Ellery Hale John D. Rockefeller: 2 Shane Telescope Lick Observatory 120 inch 305 cm 1283 m (4209 ft) 1959 Nicholas Mayall C. Donald Shane: 3 Hooker Telescope Mount Wilson Obs. Mount Wilson Observatory is a Los Angeles-area facility with several telescopes open to astronomers and the public. Getting pictures of planets that are beyond our own star is considered quite difficult, as these are small points of light orbiting a very bright star that can wash out their own light. But in particular, he wished to extend the recent discoveries made by Edwin Hubble and others concerning the large-scale structure of the universe. Ellerman was a multitalented individual who would later be recruited to join Hale in California at Mount Wilson. He was the first one to identify the shape of the Milky Way. The telescope incorporated the ’Serrurier Truss,’ newly invented by Mark U. Serrurier of CalTech in Pasadena in 1935 as a way of controlling ﬂexure in the tube of the telescope that he helped to design. 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