Principle of Solar Natural Cycle System

When does a solar cycle start?

At the beginning of a solar cycle, the Sun has the fewest sunspots (the solar minimum). The number of sunspots peak in the middle of the cycle (the solar maximum). After the solar maximum, the number of sunspots decreases again and a new cycle begins.

Is the solar activity cycle a good idea?

The solar activity cycle is poorly understood: predictions made for the current Cycle 24 have proved to be generally wrong. However, the re-evaluation of the relationships in the light of unexpected shortcomings is likely to lead to a better physical understanding of solar physics.

What is the 11-year solar cycle?

The 11-year solar cycle is today known in the scientific literature as the Schwabe sunspot cycle. The theory has always been taken with a certain skepticism because the distance of the planets from our star is so great that the gravitational tides induced by them on the surface of the Sun are tiny.

Are all solar cycles the same?

Not all solar cycles are the same; some have more sunspots than others. At the peak of active, strong solar cycles, the extra energy that reaches the Earth from the Sun might increase by around 0.1 percent, increasing global average temperatures by 0.05-0.1 degree Celsius.

Does solar magnetism control the solar activity cycle?

This 22-year cycle, manifested in magnetic phenomena including the reversal of the poles of the solar magnetic dipole, underlines the fundamental role played by solar magnetism in controlling the solar activity cycle (Petrie et al. 2014, this issue; Wang 2014, this issue; Cliver 2014, this issue).

How long does a solar cycle last?

Over historical timescales, the Sun’s activity has been variable over many timescales, with longer intervals of recurrence (see, e.g. Usoskin 2013), although the 11-year periodicity appears to have survived through all other modulation effects of solar activity. The duration of the cycles is itself quite variable.