| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 18/03/2015 | 1 | 400 | HKX | N19E65 | |
| 19/03/2015 | 1 | 100 | HAX | N19E51 | |
| 20/03/2015 | 2 | 70 | HAX | N18E39 | |
| 21/03/2015 | 2 | 110 | HSX | N19E25 | |
| 22/03/2015 | 1 | 120 | HSX | N19E11 | |
| 23/03/2015 | 4 | 100 | CSO | N20W02 | |
| 24/03/2015 | 3 | 90 | CSO | N20W15 | |
| 25/03/2015 | 7 | 100 | CAO | N19W30 | |
| 26/03/2015 | 4 | 80 | CAO | N20W42 | |
| 27/03/2015 | 2 | 70 | HSX | N20W54 | |
| 28/03/2015 | 1 | 50 | CAO | N18W66 | |
| 29/03/2015 | 3 | 50 | DAO | N18W78 | |
| 30/03/2015 | 4 | 50 | DAO | N18W92 | |
| 31/03/2015 | 4 | 50 | DAO | N18W0* |
| C |
|---|
| 14 |
| Départ | Maximum | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | C6.73 | 30/03/2015 | 01:38 | 01:52 | 02:14 | |
| 2 | C5.92 | 30/03/2015 | 21:38 | 22:05 | 22:16 | |
| 3 | C4.68 | 29/03/2015 | 15:24 | 15:30 | 15:38 | |
| 4 | C4.28 | 29/03/2015 | 06:50 | 06:56 | 07:26 | |
| 5 | C3.87 | 29/03/2015 | 13:18 | 13:23 | 13:31 | |
| 6 | C3.49 | 30/03/2015 | 12:46 | 12:55 | 13:02 | |
| 7 | C3.43 | 28/03/2015 | 16:03 | 16:07 | 16:14 | |
| 8 | C3.37 | 29/03/2015 | 10:37 | 10:42 | 10:44 | |
| 9 | C2.59 | 28/03/2015 | 20:44 | 20:51 | 20:54 | |
| 10 | C2.54 | 29/03/2015 | 14:13 | 14:19 | 14:23 |
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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 |