Sunspot region 2403 remains the most complex sunspot region on the earth-facing solar disk and is producing M-class solar flares. It has been the source of two M-class events today: M1.2 and M2.2.
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| Ultimo brillamento X | 2026/02/04 | X4.21 |
| Ultimo brillamento M | 2026/03/18 | M2.7 |
| Ultima tempesta geomagnetica | 2026/03/20 | Kp7- (G3) |
| Giorni senza macchie | |
|---|---|
| Ultimi 365 giorni | 3 giorni |
| 2026 | 3 giorni (4%) |
| Ultimo giorno senza macchie | 2026/02/24 |
| Media mensile Numero di Macchie Solari | |
|---|---|
| febbraio 2026 | 78.2 -34.3 |
| marzo 2026 | 77.5 -0.7 |
| Ultimi 30 giorni | 63.5 -42.2 |