Affichage des archives de samedi, 8 septembre 2018

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Rapports
Activité solaire
Activité aurorale
Coronal hole faces Earth

A high speed coronal hole solar wind stream arrived at our planet yesterday from a small equatorial coronal hole but it did not produce much geomagnetic activity here on our planet. While the solar wind speed increased to above 500km/s, the north-south direction of the IMF stayed mostly northward and little geomagnetic activity was observed. The Kp-index never increased above Kp2 yesterday. However, we are soon getting another chance for some nice auroral displays as yet another coronal hole faced our planet yesterday.

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La Météo Spatiale en faits

Dernière classe X08/12/2025X1.1
Dernière classe M31/12/2025M7.2
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
30 derniers jours116 +22.4

A ce jour dans l'histoire*

Éruptions solaires
12005X2.49
22014X1.42
32024M4.73
42024M2.3
51999M1.61
DstG
12025-215G4
21958-130G2
32016-116G2
41968-100G1
51980-100G1
*depuis 1994

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