Word: coronagraph
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...station will be equipped with a coronagraph, a new instrument for creating artificial solar eclipses and making possible regular observations of the corona, mysterious halo surrounding the sun, and also of other phenomena of the sun's atmosphere. This instrument is the only one of its kind in the Western Hemisphere...
Located at an altitude of 11,318 feet in the Colorado Rockies, the observatory will afford the most ideal conditions for the coronagraph, which requires clear atmosphere, free from dust and other particles. Professor Menzel will act as director...