According to scientists, in the second half of the day on November 5, a disturbance of the geomagnetic field was registered. Initially, scientists incorrectly estimated the power of the solar flare and plasma flow, which caused auroras visible from atypical regions, including in the Russian south, writes Profil.
"Both the speed and the power of the ejection, as it is now clear, were estimated absolutely incorrectly, although this still does not explain how so much a weak cause could cause a storm of the observed level," said astronomers from the ICI RAS and the Siberian Branch of the Russian Academy of Sciences.
According to scientists, the Sun threw a powerful plasma stream towards the Earth on November 3. In time, it coincided with an extremely weak solar flare, with which it was identified by experts. Astronomers admitted that they considered the outburst as an ordinary one. It was supposed to reach Earth on November 6, and in the forecasts it was indicated as a G1 class magnetic storm.
But in fact, the solar plasma flew 150 million kilometers to Earth in just two days and hit our magnetic field a day ahead of forecasts, and with significantly greater force. According to experts, on November 6, the planet will still be in the solar flare cloud.
As a result of the cosmic event, the temperature of interplanetary gas in the vicinity of the Earth increased to 300 thousand degrees, and measurements of spacecraft showed the presence in the plasma of its own magnetic field oriented opposite to the direction of the Earth. This most likely increased the impact on the Earth's magnetosphere, the scientists explained.
