A huge flare! What are the effects? →

According to the National Space Weather Monitoring and Early Warning Center on September 15, at 23:29 Beijing time on September 14, a significant flare broke out in the solar active region 13825, with a peak intensity of X4.5, reaching the level of a large flare. When the flare occurred, it was nighttime in my country, so it did not affect my country's ionospheric weather.

The image of this solar eruption captured by the SDO satellite

According to the current location of the solar active region, the velocity of the coronal mass ejection and its relative position to the Earth, the coronal mass ejection may affect the Earth from September 16 to 17. At that time, a series of space environment changes may occur, including geomagnetic storms, increased density of the upper atmosphere, and ionospheric storms, which will have varying degrees of impact on aerospace, communications and other fields.

In addition, according to the intensity of the possible geomagnetic storm, auroral activity may occur in China , but the observation effect may be slightly poor due to the influence of the full moon during the Mid-Autumn Festival. The bright moonlight weakens the aurora effect to a certain extent.

It is reported that solar flares mainly affect high-tech systems. Although solar flares carry a large amount of electromagnetic radiation and high-energy particles, only a small part of them can actually reach the vicinity of the Earth. In addition, the Earth is protected by its own magnetic field, so even if a strong flare erupts, it will have little impact on human health. The public does not need to worry or take special precautions.