
Full title
On the Construction of a Silvered Glass Telescope Fifteen and a half inches in aperture, and its use in celestial photography
Language
en
Duration
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Publisher of text edition
Project Gutenberg
Credits
Produced by Thiers Halliwell, Chris Curnow and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive)
Release date
2016-11-17
Rights
Public domain in the USA.

1837–1882
An American physician and pioneering astronomer, he helped open the age of astrophotography by capturing some of the first detailed photographs of the Moon and the first photograph of a stellar spectrum showing absorption lines. His work linked medicine, chemistry, and astronomy in a way that shaped modern observational science.
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