... A latitude characteristic has been found that demonstrates in a particular time interval in the fourth year after the maximum of the current 11-year cycle a high correlation with the Wolf number at the maximum of the next cycle. ... We found that, in each cycle, the fourth year after the Wolf-number maximum (vertical dashed lines) falls close to the epoch of the change in sign of the velocity of the mean latitude (VLA) of the sunspot zone (middle graph in Fig. ... R. Wolf, Acad. ...

Multi-Wavelength investigations of the Sun and modern problems of solar activity . SAO RAS . ... Major topics of the conference: . ... Modern observational methods for solar investigations. ... SAO RAS) - chairman . ... Special Astrophysical Observatory of the Russian Academy of Sciences (SAO RAS) together with the Main (Pulkovo) Astronomical Observatory are carring out the All-Russian conference on solar physics "Multi-Wavelength Investigations of the Sun and modern problems of solar activity". ...