Bazinga! Largest Solar Flare Yet for Solar Cycle 24!!

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.


  1. Lynn Parker says:

    Thanks for the wonderful video and comments. It is nice to hear your voice and the information you share helps with understanding the science.


  2. David says:

    Awesome! Thanks for compiling,

  3. Gary says:

    With all the radom sunspot activity going on, makes one wonder if one will be large enough, aimed directly at the earth, and cause the earth to head back to the 1700-1800s in life style.

  4. debs says:

    could this solar flare be the cause of the halo around the sun…saw some pictures today on facebook with this ring around the sun

  5. Terri says:

    What causes that long streak going straight up from the solar flare at 2:36?