Affichage des archives de vendredi, 20 avril 2018

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Rapports
Activité solaire
Activité aurorale
Moderate G2 geomagnetic storm

The anticipated coronal hole solar wind stream has arrived at our planet and packed quite a punch. Active geomagnetic conditions (Kp4) were expected but the solar wind conditions were so impressive it was enough for us to reach the moderate G2 geomagnetic storm threshold which equals a Kp of 6 and some impressive auroral displays around the globe.

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La Météo Spatiale en faits

Dernière classe X08/12/2025X1.1
Dernière classe M21/12/2025M1.3
Dernier orage géomagnétique22/12/2025Kp5 (G1)
Jours sans taches solaires
Dernier jour sans taches solaires08/06/2022
Nombre mensuel moyen de taches solaires
novembre 202591.8 -22.8
décembre 2025114.3 +22.5
30 derniers jours110.4 +23.9

A ce jour dans l'histoire*

Éruptions solaires
12001X1.02
22024M7.34
32011M3.43
42024M3.08
52001M2.64
DstG
11988-64G1
22014-57G1
31984-54G1
42002-49G1
52022-48G2
*depuis 1994

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