| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2016/09/20 | 5 | 10 | BXO | N11W57 | |
| 2016/09/21 | 7 | 120 | DAO | N11W71 | |
| 2016/09/22 | 4 | 110 | DSO | N08W90 | |
| 2016/09/23 | 4 | 110 | DSO | N08W0* |
| B | C |
|---|---|
| 16 | 7 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C8.97 | 2016/09/22 | 05:40 | 05:47 | 05:52 | |
| 2 | C4.07 | 2016/09/22 | 19:05 | 19:16 | 19:45 | |
| 3 | C2.99 | 2016/09/22 | 17:35 | 17:53 | 18:09 | |
| 4 | C2.92 | 2016/09/22 | 08:24 | 08:29 | 08:32 | |
| 5 | C2.49 | 2016/09/21 | 11:45 | 11:51 | 11:54 | |
| 6 | C2.36 | 2016/09/22 | 11:46 | 11:52 | 12:07 | |
| 7 | C1.45 | 2016/09/22 | 06:44 | 06:50 | 06:56 | |
| 8 | B9.9 | 2016/09/21 | 14:29 | 14:38 | 14:46 | |
| 9 | B9.8 | 2016/09/22 | 01:17 | 01:23 | 01:27 | |
| 10 | B9.57 | 2016/09/22 | 05:10 | 05:15 | 05:19 |
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| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/04 | M6.0 |
| 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 | 186 +94.2 |
| Last 30 days | 106.3 +12.6 |