Solar activity again continues at high levels as sunspot region 2205 produced three M-class solar flares today including an M5.4 (R2-moderate) solar flare at 03:46 UTC. We can unfortunately not provide you with imagery of these solar flares or this sunspot region as captured by the NASA SDO mission because it has now been more than 24 hours since we last received SDO data. In this article we nonetheless give you an overview of the events from today and provide information regarding the SDO data outage.
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| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/04 | M6.0 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 186 +94.2 |
| Last 30 days | 106.3 +12.6 |