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Brashear, John Alfred

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Brashear, John Alfred (1840–1920)

US astronomical instrument-maker. A Pittsburgh steel mill mechanic by day, by night he was an amateur telescope-maker. He built George Ellery Hale's first spectroheliograph.

He was born in Brownsville, Pennsylvania. Because astronomy was beginning to attract large donations from philanthropists, in 1881 he was able to start the John A Brashear Company, builders of astrophysical research instruments. The company was bought in 1926 by J W Fecker of Cleveland.



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