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The AstronomersNASA SDO - X1.1 Solar Flare, March 5, 2012
NASA SDO - X1.1 Solar Flare, March 5, 2012
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After several days of a quiet Sun, the solar activity is now high again. Big sunspot AR1429, which emerged on March 2nd, is crackling with strong flares. This morning brought the strongest so far--an X1-class eruption on March 5th at 0413 UT. This flare propelled a bright Coronal Mass Ejection into Space, which will probably miss Earth, but hit Mercury and Venus. Even if this CME misses, high-latitude sky watchers should still be alert for auroras in the nights ahead. An M2-class eruption from the same sunspot on March 4th produced another, wider CME that might yet intersect Earth. The cloud is expected to deliver a glancing blow to our planet's magnetic field on March 6th at 04:30 UT (+/- 7 hr). Take a look at the forecast from our friends at the NASA Goddard Space Weather Lab: http://iswa.gsfc.nasa.gov/downloads/20120305_085600_anim.tim-den.gif Credit: NASA SDO
Added on Apr 2, 2012 by deek
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  NASA  SDO  Solar  Dynamics  Observatory  Sun  flare  x-class  X1  x1.1  space  weather  CME  coronal  mass  ejection  explosion  magnetic  field  AR1429  active  region  astronomy 
  Solar astronomy  
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