Happy New Year! Celebrate with an M7.1 solar flare!
Wednesday, 31 December 2025 20:34 UTC
First of all, a happy new year to all of our visitors! Thank you for making 2025 an unforgettable year with all of your amazing feedback and support! As is a tradition in many places, our Sun also celebrates that we again survived another lap around the Sun. Fireworks today as the Sun produced a M7.1 solar flare (R2-moderate) which peakerd at 13:51 UTC.
The solar flare took place around sunspot region 4324 which is located on the Sun's northern hemisphere, just a few degrees east of the central meridian. Type II and IV radio emissions were observed following the eruption and we see on coronagraph imagery from SOHO/LASCO the resulting CME as it erupts out into space.
A faint halo outline can be spotted but the bulk of the trajectory is heading well north-east of us. We expect a glancing blow from this coronal mass ejection late on Friday, 2 January. Considering the faint halo outline we do not expect more than minor G1 geomagnetic storm conditions at the moment.
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| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/31 | M7.11 |
| Last geomagnetic storm | 2026/01/02 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 113.6 -10.4 |
| Last 30 days | 107.6 -0.4 |