| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 15/03/2001 | 5 | 10 | CSO | N10E02 | |
| 16/03/2001 | 8 | 40 | DSO | N10W11 | |
| 17/03/2001 | 7 | 120 | DAO | N11W23 | |
| 18/03/2001 | 9 | 100 | DAO | N12W35 | |
| 19/03/2001 | 10 | 60 | DRO | N11W49 | |
| 20/03/2001 | 8 | 100 | FAO | N13W62 | |
| 21/03/2001 | 4 | 80 | FSO | N14W74 | |
| 22/03/2001 | 1 | 0 | AXX | N18W81 |
| C | M |
|---|---|
| 4 | 1 |
| Départ | Maximum | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | M1.72 | 20/03/2001 | 03:20 | 03:33 | 03:37 | |
| 2 | C2.73 | 18/03/2001 | 17:27 | 17:33 | 17:38 | |
| 3 | C2.72 | 15/03/2001 | 21:52 | 21:59 | 22:11 | |
| 4 | C2.47 | 16/03/2001 | 15:48 | 15:54 | 16:01 | |
| 5 | C1.27 | 17/03/2001 | 09:10 | 09:14 | 09:18 |
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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 |