Relationship of solar activity cycles to planetary configurations
A single-valued relation of the 22-year and 11-year solar activity cycles is calculated with allowance for the minimum values of the average difference between the heliocentric longitudes of Venus, Earth, and Jupiter. The envelope curve of the minimum values of this parameter describes both conjunctions of the three planets when they are positioned in an almost straight line from the Sun (causing peak solar activity) and the far more frequent assemblies in a broader longitudinal sector (25–30 degrees) that are characterized by different combinations of planets on opposite sides of the Sun, also eliciting peak solar activity.