X8.2 solar flare
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Sunspot region 2673 departs in style! The region is now behind the western limb but it still managed to produce it's fourth X-class solar flare: it erupted with an X8.28 (R3-strong) solar flare that peaked at 16:06 UTC.
This is the second strongest solar flare of solar cycle 24. Sunspot region 2673 was also responsible for the strongest solar flare of this solar cycle: X9.3 on 6 September! What an amazing sunspot region! You shall be missed!

With the X8.2 solar flare, a huge and very fast Coronal Mass Ejection was launched into space, it was seen by the STEREO A coronograph instrument.