Full Download The Astrophysical Journal, Vol. 55: An International Review of Spectroscopy and Astronomical Physics; January-June, 1922 (Classic Reprint) - George Ellery Hale file in ePub Online

Read The Astrophysical Journal, Vol. 55: An International Review of Spectroscopy and Astronomical Physics; January-June, 1922 (Classic Reprint) - George Ellery Hale file in ePub

Excerpt from The Astrophysical Journal, Vol. 55: An International Review of Spectroscopy and Astronomical Physics; January-June, 1922The 40-inch refractor at Yerkes Observatory, although designed only for visual observations, has been available for astronomical photography since 1900 by means of a method perfected by G. W. Ritchey and described by him in the Astrophysical

Title : The Astrophysical Journal, Vol. 55: An International Review of Spectroscopy and Astronomical Physics; January-June, 1922 (Classic Reprint)
Author : George Ellery Hale
Language : en
Rating :
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Type : PDF, ePub, Kindle
Uploaded : Apr 06, 2021

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