At this early stage of solar cycle 24, there are a number of previous cycles that could compare to the initial cycle stage. Of those currently selected for comparison, cycle 10 is the one to reach the highest peak and the one that tracks cycle 24 best. However, the weaker cycles 12 and 14 may be better long term comparisons. The chart below displays the development of all those cycles during their 10 first years.
The X axis in the chart is the number of months from the start of a cycle, while the Y axis is the international monthly smoothed sunspot number.
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| [Solar Terrestrial Activity Report] [Graphical comparison solar cycles 21, 22 and 23] |