| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 1997/09/22 | 1 | 30 | HSX | S22E72 | |
| 1997/09/23 | 1 | 50 | HSX | S21E58 | |
| 1997/09/24 | 2 | 60 | HAX | S21E44 | |
| 1997/09/25 | 2 | 40 | HSX | S22E32 | |
| 1997/09/26 | 5 | 30 | BXO | S23E23 | |
| 1997/09/27 | 2 | 10 | AXX | S26E14 | |
| 1997/09/28 | 1 | 0 | AXX | S25E06 |
| C |
|---|
| 2 |
| Inizio | Massimo | Fine | ||||
|---|---|---|---|---|---|---|
| 1 | C2.3 | 1997/09/22 | 00:46 | 00:49 | 00:51 | |
| 2 | C1.32 | 1997/09/22 | 11:19 | 11:26 | 11:30 |
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| Ultimo brillamento X | 2026/04/24 | X2.5 |
| Ultimo brillamento M | 2026/05/10 | M5.7 |
| Ultima tempesta geomagnetica | 2026/05/15 | Kp6+ (G2) |
| Giorni senza macchie | |
|---|---|
| Ultimi 365 giorni | 3 giorni |
| 2026 | 3 giorni (2%) |
| Ultimo giorno senza macchie | 2026/02/24 |
| Media mensile Numero di Macchie Solari | |
|---|---|
| aprile 2026 | 79.3 -6.6 |
| maggio 2026 | 93.3 +14 |
| Ultimi 30 giorni | 94.4 +1.9 |