В. Г. Лозицький, В. М. Єфiменко


For more precise definition ofprognosis of 24th cycle, the peculiarities of growth of solar activity was studied in previous 23 cycles. The interestwas focused on a phase of sharp increasing of activity, beginning from 20th month of cycles. The sufficiently closecorrelation was found between smoothed Wolf’s number in the cycle maximumWmax and increment of sunspot’s numberon phase of activity increasing. From this analysis follows that for 24th cycle the following parameters are expected:Wmax =105±11, аnd time of maximum — mean 2013.


solar activity cycles; solar physics.


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