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C8.9 solar flare from sunspot region 2497

Finally some solar activity worth mentioning! A long duration C8.9 solar flare took place around sunspot region 2497 and peaked today at 21:03 UTC.

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/09/02Kp5 (G1)
Number of spotless days in 2019:186
Current stretch spotless days:16

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