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M7.3 and X2.2 solar flares
With sunspot regions 2993 and 2994 we have two formidable sunspot regions on the earth-facing solar disk. These regions are fairly stable but did loose some magnetic complexity since they first appeared on the east limb. C and even M-class flares remain possible from these sunspot regions but it is departing sunspot region 2992 that has been stealing the show today. First it produced an M7.3 (R2-moderate) solar flare that peaked at 01:36 UTC which was quickly followed by the strongest solar flare of the current Solar Cycle thus far: X2.2 (R3-strong) at 03:57 UTC.
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X2.2 solar flare, SDO outage
Major far side eruption, S1 radiation storm
Coronal hole faces Earth
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Space weather facts
| Last X-flare | 2024/12/08 | X2.2 |
| Last M-flare | 2024/12/23 | M8.9 |
| Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2024 | 152.5 -13.9 |
| December 2024 | 106.6 -45.9 |
| Last 30 days | 116.1 -41.8 |