Five flares of the penultimate power class have been recorded on the Sun. This was reported by the Laboratory of Solar Astronomy of IKI and ISZF.
The first flare, M2.3, was recorded on February 7 at 02:27 Moscow time in the X-ray range in spot group 3984 (N12W35). Three flares with powers of M1.6, M1.1, and M3.2 were also recorded in active center 3981.
The last flare was the most powerful, with a score of M7.6.
Another major flare on the Sun, which again lacked about 20% to reach the highest level X. The maximum of the event passed at 12:21 Moscow time. Now the radiation is falling.
Solar flares are classified by the power of X-ray radiation into five classes — A, B, C, M, and X. The minimum class A0.0 corresponds to a radiation power at the Earth's orbit of 10 nanowatts per square meter. With the transition to the next class, the power increases by a factor of 10.
Earlier, www1.ru reported that a flare close to the maximum class X occurred on the Sun.
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The number of powerful flares on the Sun has increased to nine
