The American Observatory released the clearest photo of sunspots in history. Why do sunspots come into being?

According to foreign media reports, a huge sunspot has appeared on the surface of the sun recently, or a dangerous solar flare may occur. The sunspot was named AR2665 with a diameter of1.2000 km, which was enough to observe its existence from the earth. Experts warn that sunspots are too big to be produced? M class? Solar flare, thus cutting off the earth's radio transmission, destroying communication satellites and triggering radio storms.

This huge sunspot was first observed by NASA's Solar Observatory last week and was not eliminated until this week. Sunspots are areas with dark brightness and low temperature on the surface of the sun, which are caused by the solar magnetic field. They usually appear in areas with dense magnetic field activity. When they release energy, solar flares and severe solar storms will gush out from sunspots. Storms of this scale will cause spectacular auroras on the earth, and will also interfere with the power supply network, causing power outages in some areas.

The world's largest solar observatory recently released the clearest picture of sunspots ever. In the warm colors of red and orange, people can see the details of sunspot activity. In Hawaii, USA, the largest solar telescope in the world? The inoue-built Solar Telescope (DKIST) is still under construction, but its first sunspot photo taken on June 28th, 2020 is already the clearest sunspot image that people can see. Thomas Rimmer, an astronomer at the National Solar Observatory, said? The spatial resolution of this sunspot image is 2.5 times higher than before, showing the magnetic field structure as small as 20 kilometers on the surface of the sun. ?

According to the researchers, the diameter of this image is about 6.5438+0.6 million kilometers. When they image the area, they can track the changes of fine structures in a short time range (about 100 second). According to the weather forecaster of the National Oceanic and Atmospheric Administration of the United States, the probability of an M-class solar flare on July 13 is 25%, because sunspots are facing the earth. Although sunspots may pose a threat to the earth, they also provide photographers with an excellent opportunity to take precious photos.