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Today two years ago: the strongest solar flare of this cycle?

Number 35... the X1.6 solar flare that occured on September 10 was the 35th X-class solar flare of this solar cycle. It was a powerful solar flare but as far as X-class solar flares go... it was with a peak flux of X1.6 actually only a relatively modest solar flare when you consider that solar flares can get 10 or even 20 times stronger than that. The true X-treme solar flares are the so called ''super X-class solar flares''... X-class solar flares that peak at X10 or even higher. We have yet to see such a solar flare this cycle... or have we?

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Complex sunspot region 4366

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X1.9 solar flare with earth-directed CME

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AR4366 1003 Feb 8-9 CMEs 22 AR4362 21 Incoming & Unnumbered Active Regions 155 Do the high-resolution sunspot counts point to more complex sunspots? 57

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