| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 12/04/2000 | 3 | 10 | BXO | N17E66 | |
| 13/04/2000 | 5 | 20 | CAO | N17E53 | |
| 14/04/2000 | 2 | 10 | AXX | N16E42 | |
| 15/04/2000 | 1 | 0 | AXX | N17E30 | |
| 18/04/2000 | 1 | 0 | AXX | N18W12 | |
| 20/04/2000 | 4 | 20 | CRO | N19W39 | |
| 21/04/2000 | 8 | 60 | DSO | N19W53 | |
| 22/04/2000 | 6 | 40 | CSO | N18W66 | |
| 23/04/2000 | 5 | 50 | CSO | N18W81 |
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| Dernière classe X | 08/12/2025 | X1.1 |
| Dernière classe M | 31/12/2025 | M7.11 |
| Dernier orage géomagnétique | 02/01/2026 | 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 | 111.2 -12.8 |
| 30 derniers jours | 106.5 -1.5 |