Is the sun awakened? Outbreak the biggest flare since 2017

 According to foreign media(https://www.hermesonline.org) reports, a few days ago, the sun broke out the biggest flare event since 2017, and our sun may wake up from its deep sleep.


　　 On May 29, the sun erupted with the strongest flare event since October 2017, which was observed by NASA’s Solar Observation Dynamics Observatory. Solar flares are the radiation produced when sunspots erupt. Sunspots are areas of the sun's surface that are temporarily dark and relatively low in temperature, and have a strong magnetic field. Scientists divide strong flares into three levels: C, M, and X. M-class flares are 10 times stronger than C-class flares, but 10 times weaker than X-class flares.


　　 It was an M-class flare that erupted on May 29, so it was not the strongest flare event, and the flare did not erupt towards the earth, so there would be no super-auroral phenomenon caused by coronal mass ejection. However, NASA officials said the flare outbreak may still be a sign that solar activity has entered a more active phase in the 11-year cycle. If this is the case, the recent solar cycle-solar cycle 24, may have ended, and we are about to usher in a new solar cycle-solar cycle 25.


Scientists set the start time of the new cycle as the "solar minimum period", that is, the period with the least solar activity and the least sunspots. After the solar minimum period, it takes 6 months of solar observation and sunspot counts to know the next When did the second flare event occur.


　　Because the solar minimum is defined by the minimum number of sunspots in a cycle, scientists need to observe the number of sunspots continuously rising before they can determine when the sunspots are at the bottom. This means that it may take 6-12 months to determine the true time of the minimal period.

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