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 Northern Lights Alert

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PassingThrough
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Posts : 195
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Join date : 2009-10-31
Location : South Carolina

PostSubject: Northern Lights Alert   Thu Nov 05, 2009 9:57 pm

from Spaceweather:

Quote :
Arctic sky watchers should be alert for Northern Lights on Nov. 5th. NOAA forecasters say there is a chance that a coronal mass ejection (CME) will hit Earth's magnetic field, and the impact could spark a high-latitude geomagnetic storm.


Quote :
The billon-ton cloud was blown into space by departing sunspot 1029 on Oct. 31st. Normally, CMEs take only two or three days to reach Earth, but during the deep solar minimum of 2008-2009, the clouds have slowed to a veritable crawl. Crossing the sun-Earth divide now requires about five days, so an Oct. 31st CME should arrive on Nov. 5th. Because the blast was not squarely Earth-directed, the sluggish CME will deliver at most a glancing blow. NOAA forecasters estimate a 5% chance of strong geomagnetic storms around Earth's poles.




A present from my new friend Sunspot 1029...
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