| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 05/02/2018 | 1 | 80 | HSX | S04E74 | |
| 06/02/2018 | 3 | 130 | CSO | S06E64 | |
| 07/02/2018 | 7 | 160 | DSO | S08E51 | |
| 08/02/2018 | 10 | 200 | DSO | S08E39 | |
| 09/02/2018 | 12 | 200 | DAI | S06E25 | |
| 10/02/2018 | 13 | 210 | DAI | S07E13 | |
| 11/02/2018 | 25 | 240 | DAI | S07E01 | |
| 12/02/2018 | 14 | 230 | DAI | S07W14 | |
| 13/02/2018 | 16 | 230 | DAI | S07W29 | |
| 14/02/2018 | 10 | 180 | DSI | S07W44 | |
| 15/02/2018 | 8 | 140 | DSO | S08W54 | |
| 16/02/2018 | 5 | 100 | CAO | S08W68 | |
| 17/02/2018 | 2 | 40 | HAX | S08W82 | |
| 18/02/2018 | 2 | 40 | HAX | S08W96 | |
| 19/02/2018 | 2 | 40 | HAX | S08W0* |
| B | C |
|---|---|
| 58 | 11 |
| Départ | Maximum | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | C6.59 | 10/02/2018 | 13:02 | 13:21 | 13:36 | |
| 2 | C2.44 | 07/02/2018 | 14:35 | 14:39 | 14:44 | |
| 3 | C2.12 | 12/02/2018 | 00:15 | 01:35 | 03:21 | |
| 4 | C1.57 | 04/02/2018 | 20:18 | 20:24 | 20:30 | |
| 5 | C1.51 | 06/02/2018 | 18:45 | 18:58 | 19:44 | |
| 6 | C1.17 | 11/02/2018 | 09:50 | 10:03 | 10:14 | |
| 7 | C1.12 | 05/02/2018 | 18:18 | 18:24 | 18:26 | |
| 8 | C1.11 | 07/02/2018 | 00:19 | 00:38 | 00:46 | |
| 9 | C1.04 | 08/02/2018 | 16:51 | 16:59 | 17:21 | |
| 10 | C1.03 | 09/02/2018 | 15:40 | 15:47 | 15:52 |
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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 |