Sunspot region AR12875
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2021/09/22 | 3 | 10 | BXO | S32W36 | |
| 2021/09/23 | 3 | 10 | BXO | S31W48 | |
| 2021/09/24 | 2 | 10 | BXO | S33W60 | |
| 2021/09/25 | 2 | 10 | BXO | S33W73 |
2021/09/22
2021/09/23
2021/09/24
2021/09/25
|
2021/09/22
2021/09/23
2021/09/24
2021/09/25
|
| B |
|---|
| 2 |
The top 2 solar flares from sunspot region 12875
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | B2.4 | 2021/09/24 | 20:19 | 20:23 | 20:27 | |
| 2 | B2.3 | 2021/09/23 | 02:04 | 02:14 | 02:20 |
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
AR 4373 17Incoming & Unnumbered Active Regions 164What, no CH/HSS thread? 34Do the high-resolution sunspot counts point to more complex sunspots? 71Current Farside Activity 381
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/02/16 | M2.4 |
| Last geomagnetic storm | 2026/02/15 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 109 -3.6 |
| Last 30 days | 126.1 +25.9 |