George Ellery Hale (1868-1938) American astronomer. Director of Yerkes (1895-1905) and Mount Wilson (1904-1923) observatories. Research on sunspots. Hale in 1907 observing sunspots. Courtesy Mount Wilson and Palomar Observatories.
George Ellery Hale (1868-1938) American astronomer. Director of Yerkes (1895-1905) and Mount Wilson (1904-1923) observatories. Research on sunspots. Hale in 1907 observing sunspots. Courtesy Mount Wilson and Palomar Observatories.
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Keywords: 1868-1938, 1907, american, archival, archive, asstronomy, astronomer, courtesy, ellery, george, hale, historical, history, mount, observatories., observing, palomar, research, scientist, solar, sunspots., usa, wilson