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Astronomy Picture of the Day
Dueling Auroras
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#77815
by
[z]Barbara Harris
@
08.08.2005 00:00
- nach oben -
Dueling Auroras
Explanation: Will it be curtains for one of these auroras? A quick inspection indicates that it is curtains for both, as the designation "
curtains
" well categorizes the type of aurora pattern pictured. Another (informal) type is the
corona
. The
above auroras
resulted from outbursts of
ionic particles
from the
Sun
during the last week of 2001 September. A
polarity change
in the
solar magnetic field
at the
Earth
then
triggered auroras
over the next few days. The
above picture
was taken on 2001 October 3 as
fleeting space radiation
pelted the
Earth's atmosphere
high above the
Yukon
in
Canada
.
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