| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 26/11/2017 | 3 | 20 | CSO | N13W08 | |
| 27/11/2017 | 5 | 60 | CAO | N13W21 | |
| 28/11/2017 | 5 | 60 | CSO | N13W34 | |
| 29/11/2017 | 4 | 60 | CAO | N12W49 | |
| 30/11/2017 | 2 | 40 | HAX | N12W65 | |
| 01/12/2017 | 1 | 40 | HRX | N13W78 |
| B |
|---|
| 1 |
| Départ | Maximum | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | B3.74 | 27/11/2017 | 11:06 | 11:17 | 11:25 |
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| Dernière classe X | 08/12/2025 | X1.1 |
| Dernière classe M | 12/12/2025 | M1.1 |
| Dernier orage géomagnétique | 12/12/2025 | Kp5 (G1) |
| Jours sans taches solaires | |
|---|---|
| Dernier jour sans taches solaires | 08/06/2022 |
| Nombre mensuel moyen de taches solaires | |
|---|---|
| novembre 2025 | 91.8 -22.8 |
| décembre 2025 | 128 +36.2 |
| 30 derniers jours | 108.4 +15.8 |