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    Naturevolume 74pages644645 (1906) | Download Citation



    A NEW FORM OF PHOTOMETER—In the attempts which from time to time have been made to photograph the solar corona without waiting for a total eclipse of the sun, the intensity of the atmospheric halo about the sun's disc has played an important part. Obviously the most suitable locality for these attempts would be where the atmospheric glare is least intense. With this in view, MM. Deslandres and Bernard have designed a photometer having for its special aim the determination of the intensity of the circumsolar light.

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