| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 1998/09/05 | 2 | 10 | AXX | S18E72 | |
| 1998/09/06 | 2 | 100 | HSX | S17E58 | |
| 1998/09/07 | 5 | 120 | CSO | S16E45 | |
| 1998/09/08 | 10 | 100 | CSO | S17E33 | |
| 1998/09/09 | 11 | 160 | CSO | S18E20 | |
| 1998/09/10 | 10 | 140 | CSO | S18E08 | |
| 1998/09/11 | 5 | 90 | CSO | S17W08 | |
| 1998/09/12 | 6 | 90 | CSO | S18W20 | |
| 1998/09/13 | 4 | 80 | CSO | S18W34 | |
| 1998/09/14 | 3 | 80 | CSO | S18W47 | |
| 1998/09/15 | 2 | 60 | HSX | S17W61 | |
| 1998/09/16 | 1 | 40 | HSX | S17W75 | |
| 1998/09/17 | 1 | 10 | AXX | S15W89 |
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| Ultimo brillamento X | 2026/04/24 | X2.5 |
| Ultimo brillamento M | 2026/05/17 | M1.4 |
| Ultima tempesta geomagnetica | 2026/05/16 | 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 | 91.4 +12.1 |
| Ultimi 30 giorni | 100.3 +9.3 |