Sunspot region 3664 which is easily the most complex sunspot region of the current Solar Cycle thus far continues where it left of yesterday, producing countless of M-class solar flares today and three X-class events (X1.0, X2.2 and X1.1). It remains an extremely complex sunspot region which has the potential to produce more major solar flares, perhaps even exceeding X5 or even X10.
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| Ultimo brillamento X | 2026/01/18 | X1.9 |
| Ultimo brillamento M | 2026/01/21 | M3.4 |
| Ultima tempesta geomagnetica | 2026/01/21 | Kp7+ (G3) |
| Giorni senza macchie | |
|---|---|
| Ultimo giorno senza macchie | 2022/06/08 |
| Media mensile Numero di Macchie Solari | |
|---|---|
| dicembre 2025 | 124 +32.2 |
| gennaio 2026 | 110 -14 |
| Ultimi 30 giorni | 114.8 +6.7 |