Affichage des archives de mercredi, 17 décembre 2014

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Rapports
Activité solaire
Activité aurorale
M8.7 coronal mass ejection, sunspot region 2241 & 2242

Solar activity today is at high levels thanks to the M8.7 solar flare that occurred this morning at 04:51 UTC. For more information regarding this solar flare we advice you to read the article that we posted this morning. Coronagraph imagery from SOHO is now complete and shows that this solar flare indeed launched a coronal mass ejection.

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M8.7 solar flare from sunspot region 2242

Solar activity increased to high levels thanks to sunspot region 2242, which continues to develop and gain in magnetic complexity. It produced a long duration M8.75 (R2-moderate) solar flare that peaked at 04:51 UTC which was surprisingly already the third M-class solar flare of today.

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La Météo Spatiale en faits

Dernière classe X08/12/2025X1.1
Dernière classe M21/12/2025M1.3
Dernier orage géomagnétique21/12/2025Kp5 (G1)
Jours sans taches solaires
Dernier jour sans taches solaires08/06/2022
Nombre mensuel moyen de taches solaires
novembre 202591.8 -22.8
décembre 2025116.9 +25.1
30 derniers jours109 +22.2

A ce jour dans l'histoire*

Éruptions solaires
11999M7.71
22013M4.82
32023M3.33
42013M2.8
51999M2.61
DstG
11982-101G3
22014-71G1
32001-59
41987-59
51989-58G1
*depuis 1994

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