| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 16/01/2018 | 2 | 20 | BXO | S11E25 | |
| 17/01/2018 | 3 | 30 | CRO | S13E12 | |
| 18/01/2018 | 2 | 20 | BXO | S13W02 | |
| 19/01/2018 | 2 | 10 | BXO | S12W15 | |
| 20/01/2018 | 1 | 10 | AXX | S12W29 |
| A | B | C |
|---|---|---|
| 1 | 3 | 1 |
| Départ | Maximum | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | C1.34 | 22/01/2018 | 02:37 | 02:57 | 03:20 | |
| 2 | B5.5 | 18/01/2018 | 08:08 | 08:13 | 08:16 | |
| 3 | B2.11 | 20/01/2018 | 04:48 | 04:55 | 05:00 | |
| 4 | B1.4 | 18/01/2018 | 09:51 | 09:57 | 10:06 | |
| 5 | A7.32 | 20/01/2018 | 17:42 | 17:52 | 17:58 |
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| Dernière classe X | 08/12/2025 | X1.1 |
| Dernière classe M | 21/12/2025 | M1.3 |
| Dernier orage géomagnétique | 21/12/2025 | 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 | 116.9 +25.1 |
| 30 derniers jours | 109 +22.2 |