English Dictionary

green flash

noun

(meteorology, astronomy) A rare phenomenon observed in morning or evening when the sun is crossing or immediately below the horizon, in which a momentary flash or ray of green light appears above the upper rim of the solar disk, caused by refraction of light in the atmosphere.

I saw a green flash in the sky during the sunset.

意味（1）

(meteorology, astronomy) A rare phenomenon observed in morning or evening when the sun is crossing or immediately below the horizon, in which a momentary flash or ray of green light appears above the upper rim of the solar disk, caused by refraction of light in the atmosphere.

Frank T. Davies, physicist on board the City of New York, en route to the Antarctic regions with Byrd Antarctic Expedition, reports as follows on a green flash observed off Bermuda on the evening of August 29, 1928.