| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 24/10/2017 | 2 | 30 | HAX | N12E67 | |
| 25/10/2017 | 2 | 30 | HAX | N12E53 | |
| 26/10/2017 | 2 | 20 | HSX | N12E39 | |
| 27/10/2017 | 2 | 20 | HRX | N12E27 | |
| 28/10/2017 | 2 | 30 | HAX | N13E15 | |
| 29/10/2017 | 1 | 10 | HRX | N13E02 | |
| 30/10/2017 | 2 | 10 | HRX | N13W12 | |
| 31/10/2017 | 1 | 10 | AXX | N13W26 | |
| 01/11/2017 | 1 | 0 | AXX | N13W39 |
| B |
|---|
| 1 |
| Départ | Maximum | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | B2.19 | 27/10/2017 | 00:36 | 00:44 | 00:50 |
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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 | 119.4 -4.6 |
| 30 derniers jours | 121.8 +8.9 |