| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 20/11/1999 | 9 | 30 | CSO | S14E39 | |
| 21/11/1999 | 5 | 30 | CSO | S16E25 | |
| 22/11/1999 | 6 | 20 | BXO | S15E12 | |
| 23/11/1999 | 7 | 20 | CRO | S15W02 | |
| 24/11/1999 | 4 | 10 | CSO | S15W15 | |
| 25/11/1999 | 4 | 10 | BXO | S15W27 | |
| 26/11/1999 | 5 | 10 | BXO | S15W39 | |
| 27/11/1999 | 5 | 30 | DRO | S13W47 | |
| 28/11/1999 | 4 | 20 | BXO | S12W60 | |
| 29/11/1999 | 3 | 20 | BXO | S12W71 | |
| 30/11/1999 | 3 | 10 | BXO | S11W85 |
| C | M |
|---|---|
| 1 | 1 |
| Départ | Maximum | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | M1.66 | 29/11/1999 | 14:09 | 14:14 | 14:18 | |
| 2 | C2.94 | 27/11/1999 | 22:37 | 22:40 | 22:42 |
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| Dernière classe X | 18/01/2026 | X1.9 |
| Dernière classe M | 21/01/2026 | M1.1 |
| 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 |