Abstract
AT sunset to-night I observed a phenomenon which has, I believe, been seen from on board ship, but never probably from a place with such a distant sea-horizon as we have here—some seventy miles. The sky for a short distance above the point where the sun set was perfectly clear of cloud or haze, and I watched carefully the last portion of its disk disappear into the sea. As soon as the last speck of the yellow vanished, a momentary bright green flash shone out. This was quite different from the complementary green seen after looking at the setting sun; brighter and bluer in tint. I have seen it stated that the cause of this green light is the sun shining through the water that hides it, and would be glad to know if such is the true explanation.
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OMOND, R. A Green Light at Sunset. Nature 35, 391 (1887). https://doi.org/10.1038/035391b0
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DOI: https://doi.org/10.1038/035391b0
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