Sunspot region 3664 is now close to the west limb and quieted down a bit compared to last week. Nonetheless it was the source of an eruptive long duration M6.6 solar flare (R2-moderate) that peaked at 9:44 UTC.
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| Ultimo brillamento X | 2026/02/04 | X4.3 |
| Ultimo brillamento M | 2026/02/11 | M1.4 |
| Ultima tempesta geomagnetica | 2026/02/05 | Kp5+ (G1) |
| Giorni senza macchie | |
|---|---|
| Ultimo giorno senza macchie | 2022/06/08 |
| Media mensile Numero di Macchie Solari | |
|---|---|
| gennaio 2026 | 112.6 -11.4 |
| febbraio 2026 | 129.4 +16.8 |
| Ultimi 30 giorni | 132 +34.3 |