In December 2019, the Sun entered the new Schwabe Cycle, Solar Cycle 25, SC25. With the reversal of the Sun’s magnetic poles, solar activity begins to increase again, consequently increasing the scale and frequency of different phenomena on its surface.
Solar activity has a low frequency period of approximately 11 years, caused by the reversal of the magnetic poles. There is also a longer period, called the Gleissberg Cycle, with a period of approximately 88 years. This period is associated to an intensification of the 11-year cycles.
SC25 start: December 2019
SC25 maximum (predicted): July 2025**
SC25 end (predicted): December 2030
The name Schwabe Cycle is due to the German astronomer, Samuel Heinrich Schwabe, who discovered it after extensive observations and studies of the surface of the Sun.
With the increase in Solar activity, the different phenomena on the surface of our star gain new intensity and frequency, making this the ideal time for their observation.
For more information regarding our solar session, see Solar Observation.
**Some forecasts point to the possibility of the maximum being as early as 2024.