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The others pictures of "Cloud iridescence and coronae" |
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| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | |
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Nacreous clouds |
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This picture, taken one hour and a half before the previous one, show by its concentric structure that the irisations are actually sun coronae (see another example of Moon corona), if the cloud's droplets have the same diameter in the entire cloud (see this example). |
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Instrument |
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110 mm focal length |
Exposure & film |
1/2000 s with digital camera Camedia 5060 |
Date & place |
August 21, 2004, Île de Noirmoutier |
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The others pictures of "Cloud iridescence and coronae" |
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| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | |
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A Shower of Stars in Brittany
Brittany by night in panorama!
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