Class X2 Solar Flare

Posted February 16, 2011 by User 1

Early on February 15 at 01:56 (UT), active region 1158 exploded with an X2.2 flare. A class X flare is the strongest category of solar flares and has the potential to cause bright auroras to appear towards the magnetic poles. The last class X solar flare occurred during the previous solar cycle in 2006.

While this strong flare, it is not strong enough to cause substantial damage. That would require a flare of X10 or higher. A coronal mass ejection was observed shortly afterwards. As the active region was turned towards Earth, auroras are expected during the coming days.

Profile of the X2 flare:


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