via the ARRL: The ARRL Solar Update

Solar flare activity was at low levels in the past week with
isolated C-class flare activity, according to NOAA’s Space Weather
Prediction Center. The largest flare of the period was a C3.4 on
September 8 from otherwise stable Region 4528. Region 4530 developed
asymmetric penumbra on both its leading and trailing poles while
undergoing consolidation in its intermediate area. New flux
emergence in the…

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