Various spectroscopes in use at the Solar-Physics Observatory


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Authors
Solar Physics Observatory 
Description

Photographs of the 6in Henry two-prism prismatic camera; Three-prism Hammersley star spectrograph; Calcite-quartz prismatic camera and the Grating Solar Spectroscope. 1890's-1900's era.

Keywords
spectroscopes, spectrographs, cameras, solar, telescopes, observatories
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