ARLA/CLUSTER: Espectacular erupção solar registada ontem pelo Solar Dynamics Observatory da NASA

[João Costa > CT1FBF]

*SPECTACULAR ERUPTION: *Yesterday, Sept. 30th, a massive plume of dark
plasma rose up from the sun's western limb and erupted. NASA's Solar
Dynamics Observatory recorded the blast:

<http://sdowww.lmsal.com/sdomedia/h264/2015/09/30/SSW_cutout_20150930T0400-20150930T1430_AIA_304-193-171_S05W65.mov>

False colors in the movie correspond to different wavelengths of extreme
ultraviolet (EUV) radiation. Greens and yellows denote hot gas. The
erupting plasma looks dark red because it was cooler and denser than its
surroundings.

Fragments of the plume flew away from the sun, forming the core of a bright
coronal mass ejection (CME): movie
<http://spaceweather.com/images2015/01oct15/cme_anim2.gif?PHPSESSID=7b7cm1ms1s4gpkncb4g566oaj3>.
There is a chance the CME will deliver a glancing blow to Earth's magnetic
field during the late hours of Oct. 3rd. Additional modeling is underway to
confirm this possibility. Stay tuned for updates. *Aurora alerts*: text
<http://spaceweathertext.com/> or voice <http://spaceweatherphone.com/>
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