| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 11/02/2005 | 1 | 80 | HSX | S08E74 | |
| 12/02/2005 | 3 | 410 | DHO | S08E60 | |
| 13/02/2005 | 1 | 380 | HHX | S08E47 | |
| 14/02/2005 | 8 | 370 | DHO | S09E34 | |
| 15/02/2005 | 26 | 440 | DKO | S08E20 | |
| 16/02/2005 | 15 | 420 | CKO | S08E06 | |
| 17/02/2005 | 17 | 470 | EKC | S07W06 | |
| 18/02/2005 | 11 | 420 | DKC | S10W18 | |
| 19/02/2005 | 8 | 460 | DKO | S09W32 | |
| 20/02/2005 | 18 | 410 | DKI | S09W45 | |
| 21/02/2005 | 12 | 440 | DKO | S09W58 | |
| 22/02/2005 | 6 | 440 | DKO | S09W71 | |
| 23/02/2005 | 2 | 300 | CKO | S09W85 | |
| 24/02/2005 | 1 | 60 | HSX | S09W97 |
| B | C |
|---|---|
| 18 | 7 |
| Départ | Maximum | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | C2.82 | 16/02/2005 | 16:33 | 16:37 | 16:40 | |
| 2 | C1.88 | 23/02/2005 | 06:21 | 06:28 | 06:33 | |
| 3 | C1.82 | 18/02/2005 | 04:33 | 04:37 | 04:39 | |
| 4 | C1.28 | 12/02/2005 | 03:24 | 03:29 | 03:37 | |
| 5 | C1.24 | 15/02/2005 | 16:17 | 16:26 | 16:35 | |
| 6 | C1.22 | 18/02/2005 | 21:40 | 21:56 | 22:02 | |
| 7 | C1.01 | 10/02/2005 | 19:47 | 20:14 | 20:21 | |
| 8 | B9.12 | 11/02/2005 | 13:50 | 13:53 | 13:57 | |
| 9 | B9.11 | 15/02/2005 | 02:12 | 02:22 | 02:29 | |
| 10 | B7.63 | 12/02/2005 | 02:29 | 02:35 | 02:46 |
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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 | 119.6 -4.4 |
| 30 derniers jours | 122.3 +11.2 |