Event Dime

The ARRL Solar Update

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When:
May 15, 2026 ยท 10:14 PM
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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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