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@banjo il faut que je retrouve les sources mais il semble que ce « grand minimum moderne » ne soit plus vraiment d’actualité.

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@AlSvartr,  Simon, Vu mon âge j'aimerai bien que ce soit faux , mais vu l'activité depuis quand même pas mal de temps , je :S :S>:(>:(



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@banjo un premier élément sur la page du silso:


« An international panel of experts coordinated by the NOAA and NASA,to which the WDC-SILSO contributed, released a preliminary forecast for Solar Cycle 25 on April 5, 2019. Based on a compilation of more than 60 forecasts published by various teams using a wide range of methods, the panel reached a consensus indicating that cycle 25 will most likely peak between  2023 and 2026 at a maximum sunspot number between 95 and 130. This prediction is now given in the scale of sunspot number Version 2. Therefore, solar cycle 25 will be similar to cycle 24, which peaked at 116 in April 2014.

The next minimum between the current cycle 24 and cycle 25 is predicted to occur between July 2019 and September 2020. Given the previous minimum in December 2008, this thus corresponds to a duration for cycle 24 between 10.6 and 11.75 years. This thus also means that the activity is expected to decline further over the coming months. “


donc en gros un cycle similaire au dernier mais faut patienter un peu, pour les RAS XI ça sera probablement encore assez calme :-)






Edited by AlSvartr
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