Affichage des archives de mercredi, 2 janvier 2019

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Rapports
Activité solaire
Activité aurorale
Solar Cycle 25 and the 10.7 cm radio solar flux

Following our previous guest post regarding the upcoming Solar Cycle 25 we have yet another guest post. This time from Patrick Geryl. Patrick does research in astrophysics, especially everything related to the Sun. He has currently published 3 articles on Researchgate. At this moment he is working with Jan Alvestad from Solen on an article: “High Resolution Sunspot Calculations.” He hopes to makes his breakthrough with his prediction about the start of Solar Cycle 25. Patrick claims that Solar Cycle 25 started in November 2018. How did he came to this conclusion? Keep reading to find that out.

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La Météo Spatiale en faits

Dernière classe X08/12/2025X1.1
Dernière classe M17/01/2026M1.1
Dernier orage géomagnétique17/01/2026Kp5+ (G1)
Jours sans taches solaires
Dernier jour sans taches solaires08/06/2022
Nombre mensuel moyen de taches solaires
décembre 2025124 +32.2
janvier 202698.3 -25.7
30 derniers jours102.5 -5.2

A ce jour dans l'histoire*

Éruptions solaires
12005M6.58
22000M5.64
31999M2.96
42012M2.5
52005M2.32
DstG
12005-103G4
21995-95G2
31958-72G1
41960-59G2
51989-55
*depuis 1994

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