| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 01/01/1999 | 1 | 10 | AXX | N14E55 | |
| 02/01/1999 | 1 | 10 | AXX | N14E41 | |
| 03/01/1999 | 6 | 10 | BXO | N15E27 | |
| 04/01/1999 | 12 | 20 | CRO | N15E16 | |
| 05/01/1999 | 12 | 50 | DAO | N15E04 | |
| 06/01/1999 | 12 | 150 | DAO | N15W10 | |
| 07/01/1999 | 13 | 160 | EAO | N14W24 | |
| 08/01/1999 | 8 | 140 | EAO | N15W37 | |
| 09/01/1999 | 3 | 80 | ESO | N14W50 | |
| 10/01/1999 | 3 | 90 | ESO | N14W64 | |
| 11/01/1999 | 3 | 50 | CSO | N14W74 | |
| 12/01/1999 | 1 | 30 | HSX | N14W83 |
| C |
|---|
| 1 |
| Départ | Maximum | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | C4.03 | 03/01/1999 | 19:46 | 19:50 | 19:53 |
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| Dernière classe X | 18/01/2026 | X1.9 |
| Dernière classe M | 21/01/2026 | M3.4 |
| Dernier orage géomagnétique | 20/01/2026 | Kp8 (G4) |
| 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 | 107.3 -16.8 |
| 30 derniers jours | 111.9 +4 |