| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 26/08/2011 | 1 | 50 | HSX | N17E62 | |
| 27/08/2011 | 1 | 80 | HSX | N17E50 | |
| 28/08/2011 | 1 | 80 | HSX | N17E38 | |
| 29/08/2011 | 1 | 40 | HSX | N17E25 | |
| 30/08/2011 | 1 | 50 | HSX | N17E12 | |
| 31/08/2011 | 2 | 50 | HSX | N18W00 | |
| 01/09/2011 | 1 | 60 | HSX | N18W14 | |
| 02/09/2011 | 1 | 60 | HSX | N18W27 | |
| 03/09/2011 | 1 | 30 | HSX | N19W40 | |
| 04/09/2011 | 2 | 20 | HAX | N18W53 | |
| 05/09/2011 | 1 | 20 | HSX | N18W66 | |
| 06/09/2011 | 1 | 10 | AXX | N18W80 | |
| 07/09/2011 | 1 | 60 | HSX | N18W93 |
| B | C |
|---|---|
| 1 | 1 |
| Départ | Maximum | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | C1.34 | 25/08/2011 | 06:54 | 07:02 | 07:13 | |
| 2 | B6.47 | 25/08/2011 | 10:23 | 10:26 | 10:34 |
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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 | 117.9 -6.1 |
| 30 derniers jours | 121.2 +12.1 |