Sunspots returned with the New Year, with sunspot numbers of 13, 16 and 16 on January 1-3. The new region was AR2732, and the area of the spot tripled each day, beginning at 10 millionths of the visible solar disc, then tripling to 30 on Tuesday, and 90 on Wednesday. This made the average daily sunspot number for the reporting week (December 27 to January 2) 4.1, compared to zero for the previo...
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