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Rapports
Activité solaire
Activité aurorale
X8.7 solar flare

What a way to sign off! Sunspot region 3664 (R3-strong) is now on the west limb and waves goodbye by producing the largest solar flare of Solar Cycle 25 which peaked at X8.7! Wow! There isn't any coronagraph imagery available from SOHO yet, but we do know the solar flare was eruptive but based on coronagraph imagery from STEREO A, the resulting coronal mass ejection is likely not aimed at Earth.

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La Météo Spatiale en faits

Dernière classe X08/12/2025X1.1
Dernière classe M31/12/2025M7.11
Dernier orage géomagnétique22/12/2025Kp5 (G1)
Jours sans taches solaires
Dernier jour sans taches solaires08/06/2022
Nombre mensuel moyen de taches solaires
décembre 2025124 +32.2
janvier 2026120 -4
30 derniers jours114.5 +16.4

A ce jour dans l'histoire*

Éruptions solaires
12002M3.49
22016M3.43
32014M2.54
42014M1.72
52002M1.64
DstG
12025-119G1
21968-108G2
31964-91G3
41988-88G1
51958-82
*depuis 1994

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