| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 28/09/2001 | 1 | 60 | HSX | S14E77 | |
| 29/09/2001 | 1 | 70 | HAX | S14E61 | |
| 30/09/2001 | 2 | 90 | CSO | S14E47 | |
| 01/10/2001 | 5 | 150 | CSO | S15E38 | |
| 02/10/2001 | 9 | 220 | EAO | S13E23 | |
| 03/10/2001 | 11 | 250 | DAO | S14E08 | |
| 04/10/2001 | 10 | 180 | CAO | S14W06 | |
| 05/10/2001 | 7 | 140 | CSO | S13W19 | |
| 06/10/2001 | 3 | 130 | CAO | S13W34 | |
| 07/10/2001 | 3 | 100 | HAX | S13W48 | |
| 08/10/2001 | 3 | 100 | HAX | S13W61 | |
| 09/10/2001 | 1 | 50 | HAX | S13W76 | |
| 10/10/2001 | 1 | 60 | HSX | S12W89 |
| C | M |
|---|---|
| 3 | 1 |
| Départ | Maximum | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | M1.57 | 02/10/2001 | 11:23 | 11:27 | 11:32 | |
| 2 | C5.28 | 05/10/2001 | 21:11 | 21:20 | 21:35 | |
| 3 | C2.76 | 05/10/2001 | 11:31 | 11:35 | 11:39 | |
| 4 | C2.75 | 04/10/2001 | 19:50 | 19:58 | 20:04 |
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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 | 117.9 -6.1 |
| 30 derniers jours | 121.2 +12.1 |