| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 12/05/2015 | 1 | 50 | HSX | S12E69 | |
| 13/05/2015 | 1 | 50 | HSX | S07E55 | |
| 14/05/2015 | 1 | 60 | HSX | S06E42 | |
| 15/05/2015 | 7 | 50 | CSO | S08E28 | |
| 16/05/2015 | 7 | 30 | CAO | S08E15 | |
| 17/05/2015 | 5 | 20 | CRO | S08W00 | |
| 18/05/2015 | 4 | 10 | BXO | S07W13 | |
| 21/05/2015 | 4 | 10 | BXO | S06W55 | |
| 22/05/2015 | 2 | 20 | CRO | S06W69 | |
| 23/05/2015 | 2 | 10 | BXO | S05W82 | |
| 24/05/2015 | 2 | 10 | BXO | S05W97 |
| B | C |
|---|---|
| 2 | 1 |
| Départ | Maximum | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | C1.36 | 21/05/2015 | 06:01 | 06:11 | 06:17 | |
| 2 | B8.55 | 21/05/2015 | 05:22 | 05:37 | 05:53 | |
| 3 | B8.53 | 20/05/2015 | 18:31 | 18:36 | 18:41 |
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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 |