MAGNIFICENT FILAMENT ERUPTION Class C1 2 CME HD

 
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Around 21 UT, 9/29/2013 a filament erupted from the northwest quadrant of the sun. It started from the surface with a size of about 30-50 Earths or ~380,000-640,000 kilometers. By the time it left the SDO field-of-view it was easily twice that or roughly the diameter of the sun in length. The eruption produced a C1.2 solar flare as it ripped magnetic fields away from solar plasma. The 2 lines of brightening either side of where the filament lifted-off from are called two-ribbon flares. The resulting CME was first observed in the STEREO Behind Cor2 and SOHO LASCO C3 coronagraphs. The initial speed estimate was ~850 km/s or ~3 million kph. This gives the CME a NASA GSFC Space Weather Research Center (SWRC) SCORE of C-type or common.The event also produced an increase in solar energetic protons for which NOAA issued an S1 solar particle...
NOAA/The Sun Today
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