2 flares classe x

il sole sembra davvero entrato in forte attività
due flares consecutivi di classe x 1.7 e 2.6 emessi da macchie solari emergenti nella parte diretta verso la terra
riporto articolo dal sito spaceweather.com



SOLAR ACTIVITY SURGES: A sunspot on the sun's eastern limb is crackling with powerful X-class solar flares. It announced itself with an X1.7-class eruption on May 13th at 0217 UT, quickly followed by an X2.8-class flare at 1609 UT. These are the strongest flares of 2013, and they signal a significant uptick in solar activity. More eruptions are in the offing. Solar flare alerts: text, voice.

Both of today's flares have produced strong flashes of extreme ultraviolet radiation. Here is the view of the X1.7-flare from NASA's Solar Dynamics Observatory:

The explosions also hurled coronal mass ejections (CMEs) into space. Coronagraphs onboard the Solar and Heliospheric Observatory are tracking the clouds: movie. The planet in the CME movie is Mercury. Although the CMEs appear to hit Mercury, they do not. In fact, no planets were in the line of fire. However, the CMEs appear to be on course to hit NASA's Epoxi and Spitzer spacecraft on May 15-16.

When the flaring began, the sunspot was hidden behind the sun's eastern limb, but now solar rotation is bringing the active region into view. The Solar and Heliospheric Observatory captured this first look during the waning hours of May 13th:

alle tre di questa mattina il sole ha prodotto un flare di classe x3.2. è il flare più potente emesso dalla nostra stella dal 2011,quando ha generato un flare di classe x 6.9.forse le preoccupazioni della NASA stavolta sono ben fondate....