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The K7RA Solar Update

Thread starter ARRL
Start date May 15, 2015

ARRL

Well-Known Member

May 15, 2015

This week our quiet sun came alive, and the visible solar disc now is crowded with sunspots. On Monday, May 11, the SESC daily sunspot number rose to 188. That is the highest sunspot number since January 30, when it was 193. We have to go back to November 17, 2013, to find a higher sunspot number. It was 282 on that day, which was way over on the other side of the peak in Cycle 24, which happen...

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The K7RA Solar Update

ARRL

Well-Known Member

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