Le Soleil toujours actif / Un Autre X-Flare aujourd'hui

ANOTHER X-FLARE: Big sunspot AR1890 is crackling with strong flares. The latest, which peaked on Nov. 8th at 04:32 UT, registered X1 on the Richter Scale of Flares. (Note: Earlier, we underestimated the intensity of this flare as M8.) NASA's Solar Dynamics Observatory recorded a flash of extreme UV radiation from the blast site:

This sunspot has a signature: It tends to produce very brief flares. The X1-flare was no exception as it lasted barely a minute. Brevity mitigates Earth-effects, so this intense flare was not strongly geoeffective--at least, not at first. The explosion also hurled a CME into space: movie. The cloud could deliver a glancing blow to Earth's magnetic field on Nov. 10-11, possibly sparking polar geomagnetic storms.

More eruptions are in the offing. NOAA forecasters estimate a 60% chance of M-class solar flares and a 20% chance of X-flares on Nov. 8th. Solar flare alerts: text, voice. 

Source:

http://www.spaceweather.com/