Long-term variations in solar activity and planetary configurations

摘要

We have analyzed the data on yearly mean international sunspot number (Rz) during the period 1610-2015 and orbital positions (ecliptic longitudes) of the giant planets in each 10-day interval during the period 1600-2099. We determined mean absolute difference (Ψ_D ) of the orbital positions of the giant planets in each interval. We find that there exits a good correlation between cycle amplitude (R_M, i.e. the maximum value of Rz ) and the value of Ψ_d at cycle maximum, suggesting that on longer time scales low/high solar activity associated with less/large spread in orbital positions of the giant planets (i.e. with a low/high value of Ψ_d ).