Sunspot region AR12901
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2021/11/28 | 1 | 20 | HSX | N17E64 | |
| 2021/11/29 | 1 | 30 | HSX | N16E50 | |
| 2021/11/30 | 1 | 10 | AXX | N15E36 | |
| 2021/12/04 | 2 | 10 | BXO | N21W19 |
2021/11/28
2021/11/29
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2021/12/04
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2021/11/28
2021/11/29
2021/11/30
2021/12/04
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Latest news
Monday, 30 March 2026
X1.5 solar flare
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
Latest forum messages
AR4419 20Current Farside Activity 453Space Weather Watch App 15Filaments and prominences 545Comet C/2026 A1 (MAPS) for the southern hemisphere 67
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Space weather facts
| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/09 | M1.0 |
| Last geomagnetic storm | 2026/04/03 | Kp7- (G3) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2026 | 85.9 +7.7 |
| April 2026 | 92 +6.1 |
| Last 30 days | 94.7 +34.5 |
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