Calm in the solar cycle
Solar activity has cycles of 11 years, in which solar activity and the number of sunspots increase and decrease. However, the last cycle has suffered a delay of two years. Now, researchers at the Arizona National Sun Observatory have explained the reasons for these cycles, as well as the last delay.
Every eleven years, the Sun generates a current of plasma at the two poles. These currents move slowly from the poles to the equator and when reaching a latitude of 22 degrees a new cycle begins.
The researchers have analyzed the currents of recent years and have found that the current that was generated in 1996 moved more slowly than normal and that to reach critical latitude it took 13 years, instead of 11. However, according to the researchers, the new cycle of the Sun has already begun.
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