The 22-year solar cycle (VIDEO)

National Center for Atmospheric Research/University Corporation for Atmospheric Research

Caption

LEFT: Oppositely charged magnetic bands, represented in red and blue, march toward the equator over a 22-year period. When they meet at the equator, they annihilate one another. RIGHT: The top animation shows the total sunspot number (black) and the contributions from the north (red) and south (blue) hemispheres. The bottom shows the location of the spots.

Credit

Scott McIntosh

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