Two powerful emission of plasma that occurred in the Sun on Wednesday and Thursday, may provoke a surge of geomagnetic disturbances on Earth on Sunday, June 17, according to experts of the center of space weather prediction National Board of oceanic and atmospheric research, USA (NOAA).



Source coronal emission became active area (group of sunspots) 1504, appeared on the visible side of the Sun on 9 June. Since then, the region 1504 issued for five x-ray flares of class M of Such outbreaks caused by reconnection, "short circuits" lines of the solar magnetic field. The result is released enormous energy - there is an x-ray flash, which is often accompanied by emission of solar plasma.

Flash is divided into five classes: A, B, C, M, and X. the Minimum class A0.0 corresponds power radiation at the Earth's orbit in 10 NW per square meter. When moving to the next letter capacity is increased ten times.

Region 1504 in the last days gave two outbreaks of class M1 - 13 June in 17.19 GMT and 14 June in 18.36 GMT. Both events were accompanied by a coronal mass ejection. The rate of the first release was relatively low (604 km per second), but the second emission was distinguished by a significant speed - 1360 kilometers per second.



As expected, both plasma clouds can reach the Earth at about the same time - on June 17, and the joint strike can provoke disturbances in the earth's magnetosphere.

The NOAA experts warn that the active area 1504 yet to "run out of steam": in the next day there is a 65%probability of outbreaks of class M and 5%chance of class X.



Dzeltenais punkti?? labaj? pus? - Zeme / Yellow dot on the right - Earth