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August 16, 2013
A Noctilucent formation spotted on a flight from Reykjavík to Paris.
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Here’s an interesting video (2.45 minutes duration) taken from NASA’s Astronomy Picture Of the Day (APOD) website showing a very rare combination of Noctilucent clouds accompanied by Aurorae on the night of 4th & 5th August recent at Caithness, Scotland:-
http://www.star.ucl.ac.uk/~apod/apod/ap130819.html
Certainly worth watching! The text is informative too.
Laurence