SOLAR CYCLES AND INCREASED SUNSPOT ACTIVITY
Detailed Description
The graphic shows the last 17 solar cycles and their related increased sunspot activity. A solar cycle is a roughly 11-year periodic change in the Sun characterized by variations in the number and intensity of sunspots, as well as a flipping of its magnetic poles.
The table shows the peaks and troughs of solar activity from when measurements began in 1850 until today.
Sources/Usage
Public Domain.
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