Space Weather News for Feb 19, 2017
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A GASH IN THE SUN'S ATMOSPHERE: An unusually wide and sinuous hole has
opened in the sun's atmosphere, and it is stretching like a gash across the
sun's southern hemisphere. A roughly fan-shaped stream of solar wind
flowing from the hole is gently buffeting Earth's magnetic field, and it
could keep polar magnetic fields in an unsettled state for the rest of
February.  Long range forecasts suggest the month could end with a
moderately strong (G2-class) geomagnetic storm. This is all good news for
Arctic sky watchers, who can expect regular episodes of Northern Lights in
the nights ahead. Visit today's edition of Spaceweather.com for more
information and sightings.
 
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[...]
Above: This image of a broad "coronal hole" (CH) cutting across
the sun's southern hemisphere is based on data taken by NASA's Solar
Dynamics Observatory on Feb. 17th.
 
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Regards,
 
Roger

--- DB 3.99 + W10 (1607)