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Not so quiet

10 June 2016

That small sun spot has got bigger over the last day or two – see www.spaceweather.com June 10th … and there is a possibility of a solar flare (but not necessarily in the direction of the Earth). However, a coronal hole has developed too (a hole in the atmosphere of the sun that allows geomagnetic forces to escape) and the hole is said to stretch across a large portion of the northern hemisphere of the Sun. Coronal holes do not cause solar flares (sudden releases of plasma) but leak the solar wind and in turn can cause geomagnetic storms in the magnetosphere of the Earth. Solar wind is due to reach us by Sunday or Monday which may result in auroral displays.

Last week it was all quiet on the Sun's front but this week not so quiet.

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