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X1.6 solar flare from sunspot region 2158

We had to wait almost 3 months for another X-class solar flare but sunspot region 2158 did it! It was the source of a long duration X1.66 (R3-strong radio blackout) solar flare that peaked today at 17:45 UTC.

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AR 4334 42 Source for historical daily sunspot plots 6 Current Farside Activity 281 AR 4336 47 Discussions of unproven theories are no longer allowed 124

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