Powerful solar flare recorded by the Institute of Geophysics
On November 4, a powerful M3.5-class solar flare occurred on the Sun, scientists from the Institute of Applied Geophysics reported to TASS.
According to experts, the flare took place in the X-ray range in sunspot group No. 4274 (N22E72) and lasted about 25 minutes.
The institute explained that solar flares are classified according to the strength of their X-ray radiation into five classes: A, B, C, M, and X.
The lowest level, A0.0, corresponds to 10 nanowatts per square meter of radiation at Earth's orbit, and each subsequent class increases radiation intensity by a factor of ten.
Such flares are often accompanied by solar plasma ejections, which, upon reaching Earth, can cause geomagnetic storms.
A smaller flare, classified as M3.2, was recorded the previous day.
Earlier, on November 3, two more M-class flares — M5.0 and M1.6 — were detected within one hour in the X-ray range.
