| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 10/04/2013 | 3 | 20 | CSO | S20E44 | |
| 11/04/2013 | 4 | 80 | DAO | S21E30 | |
| 12/04/2013 | 4 | 30 | DRO | S21E17 | |
| 13/04/2013 | 4 | 20 | CRO | S21E03 | |
| 14/04/2013 | 4 | 20 | CRO | S22W11 | |
| 15/04/2013 | 5 | 30 | CAO | S21W24 | |
| 16/04/2013 | 8 | 40 | CAO | S20W36 | |
| 17/04/2013 | 6 | 90 | DAO | S19W48 | |
| 18/04/2013 | 10 | 90 | DAO | S20W62 | |
| 19/04/2013 | 6 | 40 | CAO | S21W73 | |
| 20/04/2013 | 4 | 30 | CRO | S20W86 | |
| 21/04/2013 | 4 | 30 | CRO | S20W0* |
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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 |