RADIO HABANA CUBA
"Dxers Unlimited"
Solar Cycles 10, 13, 17, 20 and 23:
A Graphical Comparison
Solar cycles 10, 13, 17 and 20 are those that most easily compare to the development of cycle 23. The chart below displays the development of all those cycles during their first 5 years. The X axis in the chart is the number of months since the cycle started, while the Y axis is the international monthly smoothed sunspot number.
Cycle Monthly_Smoothed Sunspot Number 10 magenta 13 blue 17 black 20 aqua 23 red
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