| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2012/09/08 | 2 | 10 | BXO | N17E56 | |
| 2012/09/09 | 4 | 50 | DAO | N17E39 | |
| 2012/09/10 | 8 | 50 | DAO | N17E27 | |
| 2012/09/11 | 2 | 10 | BXO | N16E14 | |
| 2012/09/12 | 4 | 30 | DSO | N16W02 |
| B | C |
|---|---|
| 1 | 4 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C2.38 | 2012/09/10 | 10:18 | 10:23 | 10:31 | |
| 2 | C1.57 | 2012/09/17 | 09:04 | 09:08 | 09:10 | |
| 3 | C1.57 | 2012/09/11 | 08:25 | 09:32 | 09:41 | |
| 4 | C1.57 | 2012/09/11 | 09:26 | 09:32 | 09:39 | |
| 5 | B7.91 | 2012/09/17 | 06:14 | 06:49 | 08:13 |
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| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/08 | M2.0 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 162.7 +70.9 |
| Last 30 days | 108 +13.3 |