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X1.9 solar flare, Coronal hole faces Earth
Welcome to December! New month, new solar activity! Sunspot region 4274 took center stage at the beginning of November with numerous X-class events and some gorgeous coronal mass ejections, some of which arrived at Earth and caused severe G4 geomagnetic storm conditions. However she is not done yet. This sunspot region survived its trip around the far side of the Sun and she is flaring again at the start of December but with a new number: 4299. This morning ex-4274 announced her return with an X1.9 (R3-strong) solar flare that peaked at 02:49 UTC!
最新新聞
星期三, 13 5月 2026
Coronal hole faces Earth
星期一, 30 3月 2026
X1.5 solar flare
星期二, 17 3月 2026
M2.7 solar flare, CME arrival possible
最新論壇訊息
AR4455 4Incoming & Unnumbered Active Regions 434AR4446 (including AR4448/4449) 38SWPC Display bug or other issues 43Unspecified geomagnetic activity 276
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| 上一個 X-閃焰 | 24/04/2026 | X2.5 |
| 上一個 M-閃焰 | 22/05/2026 | M2.3 |
| 上一個 地球磁爆 | 16/05/2026 | Kp6- (G2) |
| 無黑子天數 | |
|---|---|
| 過去 365 天內 | 3天 |
| 2026 | 3天 (2%) |
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