| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 1998/09/07 | 3 | 50 | CRO | S20E68 | |
| 1998/09/08 | 3 | 60 | DAO | S20E57 | |
| 1998/09/09 | 3 | 60 | CSO | S22E44 | |
| 1998/09/10 | 2 | 40 | HSX | S22E36 | |
| 1998/09/11 | 1 | 40 | HSX | S22E24 | |
| 1998/09/12 | 1 | 40 | HSX | S23E12 | |
| 1998/09/13 | 1 | 130 | HSX | S23E00 | |
| 1998/09/14 | 3 | 30 | CSO | S24W13 | |
| 1998/09/15 | 1 | 30 | HSX | S23W26 | |
| 1998/09/16 | 1 | 20 | HSX | S24W40 | |
| 1998/09/17 | 1 | 0 | AXX | S24W52 | |
| 1998/09/18 | 1 | 10 | AXX | S23W65 |
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| Ultimo brillamento X | 2026/04/24 | X2.5 |
| Ultimo brillamento M | 2026/05/10 | M5.7 |
| Ultima tempesta geomagnetica | 2026/05/05 | Kp5 (G1) |
| 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 | 99.5 +20.2 |
| Ultimi 30 giorni | 96.3 +3.8 |