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  • Friday, February 3, 2012

    The K7RA Solar Update

    Here are some yearly averages that we have neglected at the beginning of the year.  These are the average daily sunspot numbers for whole calendar years, from 1994-2011: 48.1, 28.7, 13.2, 30.7, 88.7, 136.3, 173, 170.3, 176.7, 109.2, 68.6, 48.9, 26.1, 12.8, 4.7, 5.1, 25.5 and 29.9. You can see from these numbers that the minimum between Solar Cycles 22-23 -- centered around 1996 -- was over quic...


    Via ARRL - Read the full Article