| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 02/09/2021 | 7 | 70 | CAO | S16E28 | |
| 03/09/2021 | 9 | 160 | DSO | S16E15 | |
| 04/09/2021 | 5 | 90 | CSO | S16E02 | |
| 05/09/2021 | 4 | 40 | CSO | S16W11 | |
| 06/09/2021 | 4 | 100 | CSO | S16W23 | |
| 07/09/2021 | 2 | 80 | HSX | S16W41 | |
| 08/09/2021 | 1 | 80 | HSX | S17W53 | |
| 09/09/2021 | 2 | 90 | HSX | S16W66 | |
| 10/09/2021 | 1 | 70 | HSX | S15W80 | |
| 11/09/2021 | 1 | 30 | HSX | S17W92 | |
| 12/09/2021 | 1 | 30 | HSX | S17W0* |
| B |
|---|
| 12 |
| Départ | Maximum | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | B6.3 | 03/09/2021 | 15:59 | 16:06 | 16:27 | |
| 2 | B6.2 | 07/09/2021 | 06:24 | 06:28 | 06:33 | |
| 3 | B4.7 | 03/09/2021 | 06:30 | 06:39 | 06:45 | |
| 4 | B4.7 | 06/09/2021 | 12:59 | 13:04 | 13:08 | |
| 5 | B4.7 | 06/09/2021 | 16:57 | 17:01 | 17:05 | |
| 6 | B4.0 | 02/09/2021 | 03:49 | 03:52 | 03:58 | |
| 7 | B3.9 | 02/09/2021 | 00:41 | 00:46 | 00:50 | |
| 8 | B3.8 | 03/09/2021 | 00:39 | 00:47 | 00:58 | |
| 9 | B3.6 | 02/09/2021 | 23:37 | 23:42 | 23:47 | |
| 10 | B3.1 | 02/09/2021 | 23:25 | 23:33 | 23:37 |
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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 | 119.4 -4.6 |
| 30 derniers jours | 121.8 +8.9 |