| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 25/12/1999 | 1 | 30 | HSX | N35E75 | |
| 26/12/1999 | 5 | 150 | ESO | N36E64 | |
| 27/12/1999 | 8 | 350 | EKO | N36E54 | |
| 28/12/1999 | 11 | 410 | FKO | N38E44 | |
| 29/12/1999 | 11 | 400 | FKO | N38E32 | |
| 30/12/1999 | 17 | 350 | FKO | N37E19 | |
| 31/12/1999 | 16 | 320 | FAO | N37E06 | |
| 01/01/2000 | 16 | 330 | FAO | N38W05 | |
| 02/01/2000 | 11 | 270 | FAO | N38W18 | |
| 03/01/2000 | 7 | 180 | EAO | N37W29 | |
| 04/01/2000 | 4 | 160 | ESO | N38W42 | |
| 05/01/2000 | 3 | 170 | FSO | N38W51 | |
| 06/01/2000 | 3 | 140 | ESO | N38W65 | |
| 07/01/2000 | 3 | 120 | FSO | N38W78 | |
| 08/01/2000 | 2 | 40 | HAX | N38W83 |
| C |
|---|
| 5 |
| Départ | Maximum | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | C4.81 | 26/12/1999 | 08:46 | 09:02 | 09:26 | |
| 2 | C2.9 | 04/01/2000 | 11:09 | 11:14 | 11:19 | |
| 3 | C1.67 | 04/01/2000 | 14:28 | 14:42 | 14:54 | |
| 4 | C1.54 | 30/12/1999 | 06:32 | 06:36 | 06:39 | |
| 5 | C1.38 | 28/12/1999 | 09:18 | 09:21 | 09:23 |
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| Dernière classe X | 08/12/2025 | X1.1 |
| Dernière classe M | 12/12/2025 | M1.1 |
| Dernier orage géomagnétique | 12/12/2025 | Kp5 (G1) |
| Jours sans taches solaires | |
|---|---|
| Dernier jour sans taches solaires | 08/06/2022 |
| Nombre mensuel moyen de taches solaires | |
|---|---|
| novembre 2025 | 91.8 -22.8 |
| décembre 2025 | 128 +36.2 |
| 30 derniers jours | 110.1 +18.9 |