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George Ellery Hale (June 29, 1868 – February 21, 1938) was an American astrophysicist, best known for his discovery of magnetic fields in sunspots, and as the leader or key figure in the planning or construction of several world-leading telescopes; namely, the 40-inch refracting telescope at Yerkes Observatory, 60-inch Hale ...
George Ellery Hale (Chicago, 29 giugno 1868 – 21 febbraio 1938) è stato un astronomo e ottico statunitense. Nel 1889 inventò lo spettroeliografo (uno strumento per l'osservazione del Sole in luce monocromatica) e scoprì nel 1908 i campi magnetici nelle macchie solari .
George Ellery Hale (born June 29, 1868, Chicago, Ill., U.S.—died Feb. 21, 1938, Pasadena, Calif.) was an American astronomer known for his development of important astronomical instruments, including the Hale Telescope, a 200-inch (508-cm) reflector at the Palomar Observatory, near San Diego.
Mount Wilson Observatory | George Ellery Hale. George Ellery Hale (1868-1938) founded the Observatory in 1904 and directed it until his retirement in 1923. In the photograph above, taken around 1905, he is working in his office in the Monastery, the dormitory for astronomers on the mountain.
Hale's most acclaimed scientific work was his demonstration that sunspots have strong magnetic fields. Hale's Polarity Law shows evidence of the existence of a well-organized large-scale magnetic field in the solar interior that cyclically changes polarity on average every 11 years.
11 mag 2018 · Science and Technology. Astronomy: Biographies. George Ellery Hale. Hale, George Ellery. views 2,390,652 updated May 11 2018. Hale, George Ellery. ( b. Chicago, Illinois, 29 June 1868; d. Pasadena, California, 21 February 1938) astrophysics. George Hale was the eldest surviving son of William Ellery Hale and Mary Scranton Browne.
Brillante come il Sole, ecco come si potrebbe definire telegraficamente la carriera scientifica di George Ellery Hale. George si appassionò allo studio del Sole a soli 14 anni, ideando uno strumento per svelare i segreti dello spettro del nostro astro, lo spettroeliografo.
