At about 8UT, August 9, 2011, sunspot group AR11263 produced the largest solar flare of the current solar cycle. The event also had associated with it a CME, coronal wave and particle event.
Sunspot group AR11263 is about to rotate out of view but before it goes, it produced a treat for us!! An X7 solar flare, coronal wave, coronal mass ejection (CME) and a well-connected proton event. This is the largest solar flare so far for solar cycle 24!! Check out this video for more information.