Sunspot region 3842 is on fire! This region is in a perfect earth-facing position and today produced the strongest solar flare of the current solar cycle! It was an X9.05 solar flare (R3-strong) that peaked at 12:18 UTC. This is in fact the strongest solar flare in 7 years. The last time we had solar flares bigger than this one was back in 2017! Yes that is the previous Solar Cycle!
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| 上一個 X-閃焰 | 08/12/2025 | X1.1 |
| 上一個 M-閃焰 | 12/12/2025 | M1.1 |
| 上一個 地球磁爆 | 12/12/2025 | Kp5 (G1) |
| 無黑子天數 | |
|---|---|
| 上一個無黑子日 | 08/06/2022 |
| 黑子數月平均 | |
|---|---|
| 11月 2025 | 91.8 -22.8 |
| 12月 2025 | 144.3 +52.5 |
| 過去 30 天內 | 107.9 +9.5 |