| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2011/10/10 | 1 | 180 | HSX | N26E72 | |
| 2011/10/11 | 2 | 230 | HSX | N27E59 | |
| 2011/10/12 | 2 | 250 | CHO | N27E45 | |
| 2011/10/13 | 4 | 370 | CHO | N25E33 | |
| 2011/10/14 | 3 | 300 | CKO | N27E21 | |
| 2011/10/15 | 6 | 280 | CHO | N26E09 | |
| 2011/10/16 | 4 | 330 | CHO | N28W04 | |
| 2011/10/17 | 4 | 310 | CHO | N28W18 | |
| 2011/10/18 | 1 | 230 | CSO | N27W30 | |
| 2011/10/19 | 4 | 240 | CSO | N26W43 | |
| 2011/10/20 | 1 | 260 | HHX | N28W58 | |
| 2011/10/21 | 1 | 210 | HSX | N29W69 | |
| 2011/10/22 | 1 | 180 | HSX | N29W83 | |
| 2011/10/23 | 1 | 90 | HSX | N29W93 |
| B | C | M |
|---|---|---|
| 1 | 12 | 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.89 | 2011/10/22 | 10:00 | 11:10 | 13:09 | |
| 2 | C6.31 | 2011/10/12 | 06:12 | 06:18 | 06:23 | |
| 3 | C5.06 | 2011/10/19 | 20:31 | 20:37 | 20:39 | |
| 4 | C2.54 | 2011/10/12 | 10:33 | 10:40 | 10:48 | |
| 5 | C2.43 | 2011/10/09 | 13:22 | 13:27 | 13:33 | |
| 6 | C2.38 | 2011/10/15 | 12:36 | 12:39 | 12:41 | |
| 7 | C2.12 | 2011/10/12 | 07:42 | 07:57 | 08:11 | |
| 8 | C2.11 | 2011/10/12 | 19:43 | 19:50 | 20:04 | |
| 9 | C1.79 | 2011/10/13 | 07:07 | 07:11 | 07:14 | |
| 10 | C1.68 | 2011/10/12 | 15:18 | 15:22 | 15:24 |
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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 | 175.4 +83.6 |
| Last 30 days | 107.3 +14.6 |