Zenith photoelectric measurements during
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Th. Prokakis; D. Dialetis
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Article
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1977
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Springer
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English
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Measurement of the light intensity in Ihc zenith, obtained during the anqular solar eclipse of April 29, 1976 are given in three wavelength bands {.centcrcd on A's 4800. 5400 and 6100 A). The observed diflercnces in the three wavelength regions have been examined and compared wilh calculations takin