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The wait is over. We finally have a complete set of SOHO/LASCO coronagraph images from today's memorable X9.3 solar flare. If you missed today's space weather events be sure to read this news article before you continue reading here.
What a day! The strongest solar flare of solar cycle 24 erupted today at 12:02 UTC and of course it was sunspot region 2673 that took center stage. It was a memorable X9.33 solar flare (R3-strong radio blackout) which was highly eruptive as well. We have to go all the way back to 5 May 2015 to find the last time we had an X-class solar flare and it has been 12 years ago since we had a solar flare which was stronger than today's X9.3 event! Not bad considering we are already in the declining phase of solar cycle 24!
|Predicted Kp max||4|
|M-class solar flare||1%|
|X-class solar flare||1%|
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|Last geomagnetic storm:||2017/12/05||Kp5 (G1)|
|Number of spotless days in 2017:||94|
|Last spotless day:||2017/12/09|