| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 24/09/2001 | 3 | 10 | BXO | N22E13 | |
| 25/09/2001 | 8 | 40 | DSO | N21E02 | |
| 26/09/2001 | 13 | 50 | DSO | N21W12 | |
| 27/09/2001 | 9 | 60 | DAO | N21W25 | |
| 28/09/2001 | 10 | 60 | DSO | N21W38 | |
| 29/09/2001 | 7 | 40 | DSO | N21W51 | |
| 30/09/2001 | 5 | 130 | DAO | N22W65 | |
| 01/10/2001 | 3 | 140 | DAO | N22W78 | |
| 02/10/2001 | 4 | 90 | DAO | N20W90 |
| C |
|---|
| 2 |
| Départ | Maximum | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | C4.23 | 28/09/2001 | 06:35 | 06:46 | 06:52 | |
| 2 | C4.02 | 24/09/2001 | 08:09 | 08:12 | 08:17 |
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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 | 119.6 -4.4 |
| 30 derniers jours | 122.3 +11.2 |