English: It occurs periodically on the surface of the photosphere and projects through the chromosphere jets of ionized material which are lost in the corona at an altitude of hundreds of thousands of kilometers. It is caused by an accumulation of magnetic energy in areas of intense magnetic fields, at the level of the solar equator, probably as a result of a phenomenon of magnetic reconnection.
Image: The flare is not visible without the thermal view.
Solar flares follow three stages, each of which can last from a few seconds to a few hours depending on the intensity of the eruption.
During the precursor stage, energy begins to be released in the form of X-rays.
Then electrons, protons and ions accelerate until they approach the speed of light.
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