Arrived a few hours earlier than expected.Coronal mass ejection (CME) The Earth’s magnetic field hit yesterday, June 15 at 06:37 Italian time. As confirmed by experts from Space Weather Forecasting Center subordinate NOAAIn the following hours, the ‘smear strike’ was unleashed on me Geomagnetic storm class G1with some twilight scenes: unfortunately, glow strawberry supermoon interfere with vision. The storm loses its intensity in these hours.
8 hours blast in the sun
The coronal mass ejection that reached our planet yesterday was produced by AR3032 . sunspotwhich was born a long time Explosion Last June 13, at 06:07 Italian time, produces a blow up Solar M3 class who lasted Almost 8 hours from start to finish. The intense ultraviolet radiation from the glow ionized the upper part of the Earth’s atmosphere, causing a radio blackout Shortwave in Japan and South/East Asia.
L ‘Coronal mass ejection It was detected by forensic experts on board Solar and heliosphere observatory (SOHO), while NASA’s Solar Dynamics Observatory recorded the explosion in slow motion (photos below). NOAA analysts previously expected the CME to pass close to Earth around 11 a.m. GMT yesterday, June 15, forecasting Geomagnetic storm class G1.
What is a solar flare (or flare)
Solar flares are the most violent eruptions in the solar system, and they can also be observed on many other stars: sudden increases in brightness are clearly visible in the X-ray bands, but there can be emission in all bands, from radium. Gamma. In the X band, the corona emits radiation, which is the outermost part of the Sun’s atmosphere, and features weak plasma millions of degrees. During flares, plasma temperatures reach well over 10 million degrees and a brightness that can exceed that of the entire corona.
In order to increase power, classes are A, B, C, M and X. Each class is ten times more powerful than the previous one.
The flares have a characteristic direction of brightness: a sudden increase, followed by a much more gradual decrease. They do not last long, from a few minutes to a few hours at most, and are found in small areas on the surface of the Sun.
Being closed magnetic channels containing the solar plasma, these regions are mostly arc-shaped. Sometimes the glow’s strength is like solar flares, with clouds of plasma projected into space. Flares are more frequent in periods of high solar activity, in the presence of intense magnetic fields of the spots. The glow is caused by magnetic instability, which accelerates the particles and quickly releases energy, causing a sudden increase in brightness, followed by a more gradual cooling.
What is coronal mass ejection?
Coronal mass ejection (CME) is the ejection of material from the solar corona. The ejected matter, in the form of a plasma, consists mainly of electrons and protons: when this cloud reaches Earth, it can disturb its magnetosphere.
What is a geomagnetic storm?
When sudden, violent phenomena on the Sun occur, such as flares, large amounts of high-energy particles are emitted that quickly travel through space, sometimes heading toward Earth: this stream of particles is broken and deflected by the Earth’s magnetic field, which in turn is turbulent and distorted.
When this “impact” occurs, the Earth’s magnetosphere (the area around the Earth’s magnetic field) experiences a strong backlash that can cause temporary blackouts in power grids or satellite communications systems. The well-known phenomenon of the aurora borealis is also associated with geomagnetic storms.