Solar activity declined slightly over the past week, another period which saw multiple days (five) with no sunspots. We will see more of these periods over the next 2-3 years as the sun progresses toward solar minimum.
There was a geomagnetic storm peaking on December 5. In Alaska, the College A index reached 55, and peaked around the middle of the UTC day with K index reaching 7 over two 3-hour...
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There was a geomagnetic storm peaking on December 5. In Alaska, the College A index reached 55, and peaked around the middle of the UTC day with K index reaching 7 over two 3-hour...
Continue reading...