Tâche solaire AR8517
| Nombre de taches solaires |
Zone | Classe Magn. | Classe Tache | Position | |
|---|---|---|---|---|---|
| 17/04/1999 | 4 | 20 | BXO | N20W21 | |
| 18/04/1999 | 3 | 30 | CSO | N22W36 | |
| 19/04/1999 | 6 | 30 | CRO | N22W51 | |
| 20/04/1999 | 5 | 70 | DSO | N22W63 | |
| 21/04/1999 | 3 | 100 | DSO | N22W77 | |
| 22/04/1999 | 1 | 40 | HSX | N24W88 |
| B | C |
|---|---|
| 3 | 1 |
Le top 4 des éruptions solaires de la région 8517
| Départ | Maximum | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | C1.1 | 18/04/1999 | 21:12 | 21:19 | 21:23 | |
| 2 | B8.36 | 21/04/1999 | 00:19 | 00:22 | 00:27 | |
| 3 | B6.76 | 21/04/1999 | 16:46 | 16:50 | 16:52 | |
| 4 | B5.23 | 21/04/1999 | 06:02 | 06:05 | 06:07 |
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La Météo Spatiale en faits
| 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 |