Sunspot region AR12864
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2021/09/03 | 4 | 30 | CRO | N23E22 | |
| 2021/09/04 | 7 | 50 | DAO | N25E09 | |
| 2021/09/05 | 8 | 90 | DAO | N24W03 | |
| 2021/09/06 | 10 | 180 | DAO | N24W18 | |
| 2021/09/07 | 10 | 220 | CSO | N24W33 | |
| 2021/09/08 | 1 | 110 | HSX | N23W46 | |
| 2021/09/09 | 4 | 100 | HSX | N24W59 | |
| 2021/09/10 | 2 | 80 | CSO | N24W76 | |
| 2021/09/11 | 1 | 50 | HSX | N22W90 | |
| 2021/09/12 | 1 | 50 | HSX | N24W0* |
2021/09/03
2021/09/04
2021/09/05
2021/09/06
2021/09/07
2021/09/08
2021/09/09
2021/09/10
2021/09/11
2021/09/12
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2021/09/03
2021/09/04
2021/09/05
2021/09/06
2021/09/07
2021/09/08
2021/09/09
2021/09/10
2021/09/11
2021/09/12
|
| C |
|---|
| 1 |
The top 1 solar flares from sunspot region 12864
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C2.4 | 2021/09/08 | 23:42 | 00:10 | 00:33 |
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 988Current Farside Activity 370Incoming & Unnumbered Active Regions 152Feb 8-9 CMEs 17Do the high-resolution sunspot counts point to more complex sunspots? 52
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Space weather facts
| Last X-flare | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/08 | M1.8 |
| Last geomagnetic storm | 2026/02/05 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 137.7 +25.1 |
| Last 30 days | 126 +20.7 |