Vaata kolmapäev, 15 aprill 2015 arhiivi
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Coronal hole stream onset, G1 geomagnetic storm
Auroral activity has reached the minor G1 geomagnetic storm threshold during the past 24 hours thanks to a coronal hole high speed solar wind stream. The direction of the IMF (Bz) is pointing southward most of the time and this is causing enhanced auroral displays at high latitude locations. Auroral displays have been visible from many locations all over the world and in the northern hemisphere it was even seen as far south as Norfolk, England (!) where James Rowley-Hill took this amazing image that serves as our header. Fantastic!
Viimane uudis
Coronal hole faces Earth
Sunspot region 3947, X-class solar flares
Two earth-directed coronal mass ejections
Viimane foorumi postitus
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