太阳爆发X8.1级耀斑

Group 1 - The National Oceanic and Atmospheric Administration's Space Weather Prediction Center reported a significant solar flare of X8.1 intensity from sunspot region 4366, with expectations of more active solar phenomena in the coming days [1] - The simulation of coronal mass ejections indicates that most of the ejected material will pass by Earth from the northern and eastern sides around February 5 [1] - Such high-level solar flares typically exhibit rapid intensification and weakening, lasting from minutes to hours, potentially causing widespread signal degradation or interruptions in high-frequency communication on the sunlit side of Earth [1] Group 2 - Solar flares are among the most intense phenomena on the Sun, characterized by sudden brightening in localized areas of the solar atmosphere, often accompanied by enhanced electromagnetic radiation and particle emissions [2] - Solar flares are classified into five levels (A, B, C, M, X) based on energy, with each level further divided into ten grades [2] - Strong solar flare events can lead to solar radiation storms and coronal mass ejections, which may trigger geomagnetic storms affecting satellites, space stations, and ground-based power and communication systems [2]