[MIham] Solar eruption misses Earth, auroras likely anyway
Frank
frank at mountcalvarygreenville.org
Sun Sep 5 04:08:02 EDT 2010
Space Weather News for Sept. 5, 2010
http://spaceweather.com
SOLAR ACTIVITY: On Sept. 4th around 1600 UT, a magnetic filament erupted,
hurling a bright coronal mass ejection (CME) off the sun's northwestern
limb. Today's edition of http://spaceweather.com features a close-up view of
the blast from NASA's Solar Dynamics Observatory. The CME is not expected to
hit Earth. Nevertheless, auroras are possible in the nights ahead. A solar
wind stream flowing from a coronal hole is heading our way, due to arrive on
Sept. 5th or 6th. NOAA forecasters estimate a 50% chance of high-latitude
geomagnetic activity when the solar wind hits. With the approach of northern
autumn, Arctic nights are getting dark again--dark enough to see the
Northern Lights. People in Alaska, Canada and Scandinavia should keep an
eye on the night sky this weekend.
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