| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 10/09/2015 | 1 | 10 | AXX | S10E07 | |
| 11/09/2015 | 1 | 10 | AXX | S10W09 | |
| 12/09/2015 | 10 | 80 | DAI | S10W20 | |
| 13/09/2015 | 12 | 180 | DAI | S11W34 | |
| 14/09/2015 | 12 | 180 | DAI | S11W34 | |
| 15/09/2015 | 5 | 170 | ESO | S10W61 | |
| 16/09/2015 | 4 | 170 | ESO | S10W75 | |
| 17/09/2015 | 1 | 120 | HSX | S12W84 | |
| 18/09/2015 | 1 | 120 | HSX | S12W98 |
| B | C |
|---|---|
| 3 | 3 |
| Départ | Maximum | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | C1.86 | 11/09/2015 | 21:30 | 21:37 | 21:43 | |
| 2 | C1.83 | 16/09/2015 | 04:20 | 05:44 | 05:58 | |
| 3 | C1.83 | 16/09/2015 | 05:29 | 05:44 | 05:56 | |
| 4 | B8.83 | 13/09/2015 | 04:15 | 04:20 | 04:29 | |
| 5 | B8.47 | 13/09/2015 | 05:20 | 05:24 | 05:33 | |
| 6 | B5.84 | 11/09/2015 | 16:43 | 16:46 | 16:49 |
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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 |