Three class M flares, the second most powerful, occurred on the Sun. This was reported on April 29 by the Institute of Applied Geophysics.
According to the agency, the first flare occurred around 8:00 AM Moscow time. Two more were recorded during the day: at 13:02 and 13:57 in the X-ray range in active region number 4078. The first of these, class M1.3, lasted 33 minutes, the second, M1.7, lasted 25 minutes.
Class M refers to moderately powerful flares capable of causing magnetic storms and radio interference on Earth.
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