| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 04/09/2011 | 3 | 30 | CAO | S30E64 | |
| 05/09/2011 | 3 | 80 | CSO | S32E51 | |
| 06/09/2011 | 5 | 80 | CSO | S31E38 | |
| 07/09/2011 | 5 | 100 | CSO | S31E25 | |
| 08/09/2011 | 1 | 100 | HSX | S30E09 | |
| 09/09/2011 | 1 | 60 | HSX | S30W05 | |
| 10/09/2011 | 2 | 60 | HSX | S29W16 | |
| 11/09/2011 | 2 | 70 | HSX | S29W28 | |
| 12/09/2011 | 2 | 60 | HSX | S28W42 | |
| 13/09/2011 | 2 | 50 | CSO | S29W53 | |
| 14/09/2011 | 3 | 80 | DSO | S27W68 | |
| 15/09/2011 | 4 | 170 | DSO | S27W78 | |
| 16/09/2011 | 1 | 10 | HSX | S28W83 |
| C |
|---|
| 1 |
| Départ | Maximum | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | C2.32 | 03/09/2011 | 22:08 | 22:12 | 22:14 |
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| Dernière classe X | 18/01/2026 | X1.9 |
| Dernière classe M | 21/01/2026 | M3.4 |
| Dernier orage géomagnétique | 22/01/2026 | Kp5+ (G1) |
| Jours sans taches solaires | |
|---|---|
| Dernier jour sans taches solaires | 08/06/2022 |
| Nombre mensuel moyen de taches solaires | |
|---|---|
| décembre 2025 | 124 +32.2 |
| janvier 2026 | 119.1 -4.9 |
| 30 derniers jours | 122.3 +12.7 |