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Sunspots and Con Trails by Leo Aerts

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About this observation
Observer
Leo Aerts
Time of observation
13/02/2014 - 17:07
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Leo wasphotographing a big sunspot group when an airliner intervened, creating this interesting image. Camera body was aNikon D90 fitted with a13 cm Opticon Schmidt-Cassegrain at the f=1500mm focal plane and aBaader Solar ND 3.8filter on the front of the telescope. Exposure time was 1/4000 second at 200 ASA. As Leo says, "It all happened in a split (1/4000 second) second"
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