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hale, george ellery

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Hale, George Ellery 1868-1938.  
American astrophysicist who invented the spectroheliograph (1891) and directed the Mount Wilson Observatory (1904-1923).
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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