Sunspots are areas of the sun's surface that are about a quarter of the luminosity of the surrounding regions. (spot temperature between 4000 and 5000 K, according to Stefan-Boltzmann law, while the surrounding region is about 6000 K) A phenomenon caused by very strong magnetic field variations on the Sun. In the process of development, the magnetic field of the sunspot also increased increases.<br />The period of black spot appearance is approximately 11 years.<br />Black spots often appear in groups, especially double groups, the magnetic fields of the double groups are often different. The largest spots, about 104 km in diameter, last for about 2 months, while most sunspots only last a few days and are then replaced by other sunspots.<br />The sunspot distribution is mainly concentrated in the range from 8 degrees to 35 degrees either side of the Sun's equator.<br />#MatTroi # KinhThienVan #Microsope #Telescope #Sunspot<br /><br />©️ Copyright belongs to the channel Microscope World - Nguyen Huu Tien<br /> Don't Reup<br /> ******
