via the ARRL: The ARRL Solar Update

Solar activity remained at low levels this past week. Region 4436 was
responsible for the majority of the C-flare activity, including the
largest flare of the period, a C2.3 that peaked on May 13. Region
4432 rotated off the west limb. Two new regions were numbered during
the past 24 hours. Region 4437, which has since decayed to plage, and
4438, resulting in a total of 4 numbered regions now on the…

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