| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 12/03/2012 | 3 | 150 | DSO | N12E63 | |
| 13/03/2012 | 2 | 80 | CSO | N11E50 | |
| 14/03/2012 | 4 | 90 | CSO | N12E37 | |
| 15/03/2012 | 9 | 110 | CSO | N13E23 | |
| 16/03/2012 | 11 | 120 | CSI | N12E09 | |
| 17/03/2012 | 11 | 100 | DSO | N13W04 | |
| 18/03/2012 | 6 | 60 | CSO | N13W17 | |
| 19/03/2012 | 1 | 60 | HSX | N08W29 | |
| 20/03/2012 | 4 | 70 | CSO | N11W45 | |
| 21/03/2012 | 2 | 30 | CRO | N11W56 | |
| 22/03/2012 | 1 | 20 | HSX | N09W69 | |
| 23/03/2012 | 1 | 10 | AXX | N09W81 |
| B | C |
|---|---|
| 1 | 4 |
| Départ | Maximum | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | C1.75 | 13/03/2012 | 01:45 | 01:50 | 01:56 | |
| 2 | C1.36 | 11/03/2012 | 10:58 | 11:03 | 11:13 | |
| 3 | C1.31 | 16/03/2012 | 03:03 | 03:09 | 03:17 | |
| 4 | C1.25 | 12/03/2012 | 10:50 | 10:55 | 11:01 | |
| 5 | B7.81 | 16/03/2012 | 07:46 | 07:50 | 07:53 |
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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 |