Tâche solaire AR8340
| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 18/09/1998 | 1 | 150 | HHX | N20E76 | |
| 19/09/1998 | 8 | 360 | DKO | N22E64 | |
| 20/09/1998 | 12 | 470 | CKO | N19E50 | |
| 21/09/1998 | 11 | 490 | DKO | N19E38 | |
| 22/09/1998 | 21 | 540 | DKO | N19E25 | |
| 23/09/1998 | 28 | 380 | DAI | N20E11 | |
| 24/09/1998 | 31 | 460 | EKO | N20W02 | |
| 25/09/1998 | 25 | 520 | DKO | N20W15 | |
| 26/09/1998 | 18 | 390 | DKI | N20W27 | |
| 27/09/1998 | 18 | 350 | CKI | N21W40 | |
| 28/09/1998 | 8 | 300 | CKO | N19W54 | |
| 29/09/1998 | 7 | 320 | CHO | N20W68 | |
| 30/09/1998 | 1 | 230 | HSX | N19W82 | |
| 01/10/1998 | 1 | 100 | HSX | N19W93 |
| B | C | M |
|---|---|---|
| 2 | 12 | 2 |
Le top 10 des éruptions solaires de la région 8340
| Départ | Maximum | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | M9.96 | 23/09/1998 | 06:40 | 07:13 | 07:31 | |
| 2 | M4.1 | 30/09/1998 | 13:08 | 13:50 | 14:48 | |
| 3 | C8.81 | 29/09/1998 | 01:54 | 02:02 | 02:09 | |
| 4 | C8.59 | 27/09/1998 | 23:37 | 23:42 | 23:49 | |
| 5 | C7.54 | 27/09/1998 | 16:23 | 16:42 | 16:46 | |
| 6 | C4.74 | 28/09/1998 | 05:44 | 05:53 | 05:58 | |
| 7 | C4.03 | 21/09/1998 | 07:36 | 08:06 | 08:23 | |
| 8 | C3.77 | 27/09/1998 | 08:06 | 08:13 | 08:23 | |
| 9 | C3.27 | 23/09/1998 | 22:43 | 22:50 | 22:55 | |
| 10 | C2.87 | 21/09/1998 | 18:12 | 18:21 | 18:34 |
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La Météo Spatiale en faits
| Dernière classe X | 18/01/2026 | X1.9 |
| Dernière classe M | 19/01/2026 | M1.2 |
| Dernier orage géomagnétique | 19/01/2026 | Kp9- (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 | 103.8 -20.2 |
| 30 derniers jours | 109 +1.5 |