For most of 2018, no spots were observed on the solar surface. Experts believe that there may be a frosty period on Earth. More specifically, sunspots have not seen 134 days this year. Only 240 days have passed, which means most of the time the sun was “clean”. The researchers suggest that the solar minimum is approaching.
A similar pattern has already been observed in the past. It is worth returning in the near 2009, when our star showed the deepest solar at least a century. Usually this period is accompanied by additional cosmic rays, large holes in the solar atmosphere and strange pink auroras.
The sun follows an 11-year cycle, moving from maximum to minimum. During the period of maximum, the star emits more heat and becomes covered with spots. Less heat with a minimum is associated with a decrease in magnetic waves. It was not expected that the minimum point will come before 2020, but it is possible and for earthlings will not be the best news. During the last long solar minimum a mini-glacial period formed. He is called the minimum of Maunder, which covers 70 years. This is seven decades of freezing weather, which started in 1645 and lasted until 1715, when sunspots were extremely rare. At that time, the global temperature fell by 1.3 ° C, which caused the seasons to fall and problems with food began.
Large coronal holes in the Sun
It is known that low solar activity affects the weather and climate of the Earth, and also correlates well with the growth of cosmic rays reaching the upper part of the atmosphere. The empty Sun clearly hints at the approaching solar minimum, which means you should watch the star more closely, because with each month the spots will become less and less.