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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, Illinois; 29 de junio de 1868-Pasadena, California; 21 de febrero de 1938) fue un astrónomo solar estadounidense, conocido especialmente por sus descubrimientos sobre el magnetismo solar.
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.
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.
George Ellery Hale ( Chicago, Illinois; 29 de junio de 1868- Pasadena, California; 21 de febrero de 1938) fue un astrónomo solar estadounidense, conocido especialmente por sus descubrimientos sobre el magnetismo solar.
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.
11 de may. de 2018 · The American astronomer George Ellery Hale (1868-1938) designed and built three great observatories, invented the spectroheliograph, and discovered magnetic fields in sunspots. George Ellery Hale was born on June 29, 1868, in Chicago, Illinois, the eldest surviving son of William Ellery Hale and Mary Scranton Browne.
