ARLA/CLUSTER: Auroras boreais massivas em redor do Circulo Polar Artico

[João Costa > CT1FBF]

'Massive Auroras' sighted around the Arctic Circle

G1-class geomagnetic storms are underway around the Arctic Circle on Oct.
16th as Earth enters a stream of very fast moving solar wind.

Veteran observers in Sweden are reporting one of the best displays in
recent memory as "massive auroras" dance across the sky.

Visit Spaceweather.com
<http://spaceweather.us11.list-manage1.com/track/click?u=0c5fce34d5ca05f64a13d085d&id=2d65680891&e=f98eeb7cd6>
for updates about the ongoing light show.
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