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Yesterday's powerful solar flare could trigger the appearance of the northern lights in the middle latitudes
Yesterday there was a pretty powerful flash in the sun. Flash output, according to the official classification - X1.6. According to experts, such outbreaks occur very rarely, but when you consider that the plasma emission was directed towards the Earth, the event becomes a piece, so to speak.
Ejection velocity of the plasma, according to official data, is 3750 km / s, and if not for the inhibition of plasma in the strength of the interaction with the magnetic and gravitational field of the Sun, the "shock" wave would reach Earth today. However, the real term - 2 days to reach our planet plasma must September 12th. More specifically, on September 12 at 17-22 pm Moscow time.
On this page you can see model shock arrival from yesterday's flash. Apparently, the land is located just in the center of impact, though, of course, there is the likelihood that there are inaccuracies in the model, and the plasma will pass.
If the index of geomagnetic disturbance exceeds 7, the aurora borealis can be observed up to 50 sowing. latitude. For the index of the next, you can here .
The dependence of the possible appearance of the aurora borealis in the various regions of the index of geomagnetic disturbance
And here is the video of the flash:
And a little video:
Source: habrahabr.ru/post/236467/