Just a comment from the far north on Dawn and Aurora: Aurora is the name of the light at dawn. The full name of green flaming bands visible at night in the far north and south is Aurora Borealis and Aurora Australis. The name Aurora Borealis was given because the light as sees from middle Europe it resembles dawn, but was not dawn. Hence it got the addition Borealis. As the same phenomenon later was observed in the far south, the southern version got the addition Australis.
Today the single word "Aurora" is no longer commonly used for the light at dawn, and is more often associated with the light phenomenon in the upper atmosphere. Best Anne Bruvold >From a place where people usually don't meet up to see the sunrise, but rather >stay up late to enjoy the midnight sun :-) Sendt fra min HTC ----- Reply message ----- Fra: "John Pickard" <john.pick...@bigpond.com> Til: "sundial@uni-koeln.de" <sundial@uni-koeln.de> Emne: Aurora, the beginning of the arrival of Dawn Dato: tor., juni 11, 2015 01:30 Hi Michael, You are making life far too complicated by worrying about which definition of sunrise to use for your assignation. Here in Australia, if you are invited by a young (or older) woman to view a sunrise from a beach, the only questions to be asked are "how much food and beer / wine do I bring?" and "are you bringing the picnic rug?" But we are now in grip of winter in Sydney, and only the truly brave (or those well fortified by alcohol anti-freeze) would venture to the beach in the vain hope of glimpsing the dawn through the clouds. I'm not too sure about using "aurora" in the context of dawn. I spent many hours lying in the snow in winter (~ -30C) in Antarctica looking up at auroras, and it's something I've never forgotten. Whether rippling sheets of light, or shooting beams, they were pure magic. Far, far better than any sunrise. Cheers, John John Pickard john.pick...@bigpond.com<mailto:john.pick...@bigpond.com>
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