A single small sunspot appeared on July 21, then disappeared. Before that, no sunspots appeared since June 26. The daily sunspot number on July 21 was 11, which is the minimum non-zero sunspot number.
Because there were no sunspots over the previous week, average daily sunspot numbers increased from 0 to 1.6, while average daily solar flux for the week declined from 71.8 to 68.4.
Average daily pl...
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Because there were no sunspots over the previous week, average daily sunspot numbers increased from 0 to 1.6, while average daily solar flux for the week declined from 71.8 to 68.4.
Average daily pl...
Continue reading...
