Saturday, 30 August 2014

history - Who discovered what set of factors is responsible for visibility of celestial bodies on Earth's daytime sky?

Visibility of a celestial body on the sky during the day depends on a number of factors - if I recall correctly: the body's magnitude, Seeing, Sky brightness, and probably some others I have missed.



Who was the first to discover/compile the set of variables responsible for determining, whether a celestial body remains visible with naked eye in certain (daylight) conditions?

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