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Coronal hole faces Earth

A large southern extension of the northern hemisphere polar coronal hole is facing Earth today.

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M1.1 solar flare from behind the east limb

A huge surprise last evening as solar activity unexpectedly reached moderate level thanks to an M1.11 (R1-minor) solar flare that took place behind the east limb. The solar flare peaked at 23:28 UTC on 20 October 2017.

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Last X-flare2024/09/14X4.54
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