The Institute of Applied Geophysics (FSBI IPG) told that a strong solar flare was recorded on Friday.
“On February 13 at 11:58 Moscow time, a 48-minute M1.1 flare was detected in the X-ray range of sunspot group 4373 (N08W16),” the report states.
Previously, the solar astronomy laboratory of the Institute of Space Research of the Russian Academy of Sciences and ISTP SB RAS noted that flare activity on the Sun is rapidly decreasing and may reach zero.
Solar flares, depending on the strength of X-ray radiation, are divided into five classes: A, B, C, M and X. The minimum class A0.0 corresponds to a radiant power in Earth orbit of 10 nanowatts per square meter. When moving to the next letter, the power increases tenfold. Flares are often accompanied by solar plasma emissions, clouds of which, when reaching Earth, can cause magnetic storms.
