The effect on observations of the sky/se
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D. R. Barber
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Article
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1950
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John Wiley and Sons
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English
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## Abstract Visual and photographic observations of the illumination of the skyโsea horizon, made in light of different wavelengths, indicate an enhanced brightness contrast when the shorter wavelengths are excluded. The effect is most pronounced in the presence of haze, or light mist. When use is