ON THE SEPARATION OF SOLAR AND LUNAR CYCLES
The synodic rotation period of the Sun nearly coincides with the sidereal rotation period of the Moon (27.3 days).The 11-year cycle of solar activity coincides with the eclipse cycle Tritos.The secular cycle read more of solar activity is close to the 93-year lunar cycle.Due to these coincidences, the cause of monthly, 11-year, and secular periods