in tre giorni ,dopo un periodo di attività minima.il sole ha ricominciato un'intensa attività,rilasciando un flare di classe x1 e uno di classe x5 proprio poche ore fa
qui sotto riporto l'articolo dal sito spaceweather.com
MAJOR SOLAR FLARE: Big sunspot AR1429 has unleashed another major flare. This one is the strongest yet, an X5-class eruption on March 7th at 00:28 UT. NASA's Solar Dynamics Observatory recorded the extreme UV flash:
This eruption hurled a bright CME into space. First-look data from STEREO-B are not sufficient to determine if the cloud is heading for Earth. Our best guess is "probably, yes, but not directly toward Earth." A glancing blow to our planet's magnetosphere is possible on March 8th or 9th. Stay tuned for updates. Solar flare
gianni maltoni
SOCIO C.U.N. romagna