Behemoth sunspot AR2192 has unleashed an X1-class solar flare

This comes as no surprise. Behemoth sunspot AR2192 has unleashed an X1-class solar flare. NASA’s Solar Dynamics Observatory recorded the blast in this extreme UV image of the sun on Oct. 19th (0500 UT):

A pulse of ultraviolet and X-radiation from the flare caused a brief but strong HF radio blackout on the dayside of Earth, mainly over Asia and Australia.

Update (8:30 AM PDT): Remarkably, this explosion did not yield a significant CME. Just-arriving coronagraph images from SOHO show no cloud emerging from the blast site.

Big sunspots tend to produce big flares, and clearly AR2192 is no exception. More X-flares are likely as AR2192 turns toward Earth in the days ahead. Also, if you have a solar telescope, point it at the sun. This active region is a real beauty. Solar flare alerts: text, voice

http://spaceweather.com

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