Abstract
The color of daylight from a near-north sky at Ottawa, Ontario, Canada, was measured visually on a six-primary Donaldson colorimeter during most of March 1962. The results are given graphically in terms of the CIE standard observer and coordinate system and are compared with relevant data reported by other authors. The agreement between colors of natural daylight with those of artificial daylight is also discussed.
© 1963 Optical Society of America
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