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Solar Cycle 25 has officially started in December 2019

Breaking news today from the Solar Cycle 25 Prediction Panel! It is now official, the solar minimum between Solar Cycle 24 and 25 took place December 2019 when the 13-month smoothed sunspot number fell to 1.8. This means that we've been in Solar Cycle 25 since December 2019!

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domenica, 1 febbraio PM

Complex sunspot region 4366

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CME impact! S4 solar radiation storm

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X1.9 solar flare with earth-directed CME

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