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M5.6 solar flare, dynamic sunspot region 2403
Sunspot region 2403 remains active and this morning it produced the strongest solar flare thus far: an impulsive M5.6 (R2-moderate) solar flare that peaked at 07:33 UTC. No radio sweeps were reported from this impulsive solar flare which indicated that a coronal mass ejection from this event would be unlikely. SOHO coronagraph imagery confirms that this solar flare indeed did not launch a coronal mass ejection.
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Thursday, 16 January 2025
Coronal hole faces Earth
Saturday, 4 January 2025
Sunspot region 3947, X-class solar flares
Monday, 30 December 2024
Two earth-directed coronal mass ejections
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AR 13961 10101/21/2025 AR 3967 M3.3 CME 6Data loss sometimes on Ace and Dscovr 1Unexplained proton activity 47Filaments and prominences 624
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Space weather facts
| Last X-flare | 2025/01/04 | X1.85 |
| Last M-flare | 2025/01/22 | M1.3 |
| Last geomagnetic storm | 2025/01/04 | Kp5 (G1) |
| Spotless days | |
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| Monthly mean Sunspot Number | |
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| December 2024 | 154.5 +2 |
| January 2025 | 145.2 -9.3 |
| Last 30 days | 162 +43.1 |