| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 26/10/1998 | 4 | 50 | DSO | N17E59 | |
| 27/10/1998 | 6 | 70 | DAO | N17E45 | |
| 28/10/1998 | 7 | 40 | CAO | N18E31 | |
| 29/10/1998 | 9 | 90 | FSO | N20E23 | |
| 30/10/1998 | 5 | 50 | CSO | N19E05 | |
| 31/10/1998 | 5 | 50 | CSO | N18W12 | |
| 01/11/1998 | 3 | 30 | CSO | N18W25 | |
| 02/11/1998 | 1 | 10 | AXX | N18W39 | |
| 03/11/1998 | 1 | 10 | AXX | N18W52 | |
| 04/11/1998 | 1 | 10 | AXX | N17W66 | |
| 05/11/1998 | 1 | 0 | AXX | N18W79 |
| C |
|---|
| 1 |
| Départ | Maximum | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | C2.41 | 28/10/1998 | 02:03 | 02:17 | 02:27 |
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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 |