Sunspot region AR12910
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2021/12/16 | 6 | 20 | CRO | N13W17 | |
| 2021/12/17 | 5 | 30 | CRO | N14W29 | |
| 2021/12/18 | 2 | 10 | BXO | N12W44 | |
| 2021/12/19 | 2 | 20 | HSX | N12W54 | |
| 2021/12/20 | 2 | 10 | AXX | N13W65 | |
| 2021/12/21 | 3 | 20 | CRO | N15W79 | |
| 2021/12/22 | 3 | 20 | CRO | N15W93 |
2021/12/16
2021/12/17
2021/12/18
2021/12/19
2021/12/20
2021/12/21
2021/12/22
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2021/12/16
2021/12/17
2021/12/18
2021/12/19
2021/12/20
2021/12/21
2021/12/22
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Latest news
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Latest forum messages
AR4366 544Anomalous sunspots on the sun ? 5New satellites - Proba-3, PUNCH, SWFO-L1, GOES-U/19 67X1.9 CME 1347JHelioviewer Tips and Settings 39
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Space weather facts
| Last X-flare | 2026/02/02 | X1.6 |
| Last M-flare | 2026/02/02 | M4.0 |
| Last geomagnetic storm | 2026/01/28 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| February 2026 | 97 -27 |
| Last 30 days | 118.3 +3.5 |