| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 20/08/1998 | 7 | 330 | DHO | N32E72 | |
| 21/08/1998 | 8 | 440 | EKO | N32E59 | |
| 22/08/1998 | 11 | 510 | EKO | N31E47 | |
| 23/08/1998 | 12 | 570 | DKO | N31E34 | |
| 24/08/1998 | 12 | 450 | DKO | N31E21 | |
| 25/08/1998 | 17 | 370 | DKO | N31E09 | |
| 26/08/1998 | 18 | 380 | DKO | N30W01 | |
| 27/08/1998 | 14 | 320 | DKO | N31W15 | |
| 28/08/1998 | 12 | 180 | DAO | N31W26 | |
| 29/08/1998 | 13 | 160 | DSO | N32W39 | |
| 30/08/1998 | 9 | 140 | DSO | N32W52 | |
| 31/08/1998 | 3 | 140 | DSO | N30W65 | |
| 01/09/1998 | 4 | 90 | DSO | N32W77 | |
| 02/09/1998 | 3 | 40 | DAO | N32W90 |
| B | C | M | X |
|---|---|---|---|
| 1 | 11 | 4 | 6 |
| Départ | Maximum | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | X7.03 | 18/08/1998 | 22:10 | 22:19 | 22:28 | |
| 2 | X5.57 | 19/08/1998 | 21:35 | 21:45 | 21:50 | |
| 3 | X4.03 | 18/08/1998 | 08:14 | 08:24 | 08:32 | |
| 4 | X1.79 | 17/08/1998 | 21:10 | 21:20 | 21:30 | |
| 5 | X1.57 | 24/08/1998 | 21:50 | 22:12 | 22:35 | |
| 6 | X1.29 | 22/08/1998 | 23:57 | 00:09 | 00:16 | |
| 7 | M4.34 | 19/08/1998 | 14:04 | 14:26 | 14:44 | |
| 8 | M3.29 | 19/08/1998 | 12:22 | 12:42 | 12:51 | |
| 9 | M3.2 | 23/08/1998 | 09:23 | 09:34 | 09:47 | |
| 10 | M2.27 | 31/08/1998 | 15:29 | 15:39 | 15:47 |
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| Dernière classe X | 08/12/2025 | X1.1 |
| Dernière classe M | 21/12/2025 | M1.3 |
| Dernier orage géomagnétique | 12/12/2025 | 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 | 118.5 +26.7 |
| 30 derniers jours | 108.7 +20.4 |