| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2010/09/27 | 3 | 10 | AXX | N19W05 | |
| 2010/09/28 | 1 | 0 | AXX | N20W19 | |
| 2010/09/29 | 6 | 10 | AXX | N20W31 | |
| 2010/09/30 | 7 | 50 | DSO | N19W45 | |
| 2010/10/01 | 3 | 30 | BXO | N19W60 | |
| 2010/10/02 | 1 | 0 | AXX | N20W71 | |
| 2010/10/03 | 1 | 0 | AXX | N21W84 |
| B | C |
|---|---|
| 9 | 2 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C2.84 | 2010/09/28 | 22:05 | 22:11 | 22:15 | |
| 2 | C2.47 | 2010/09/28 | 09:38 | 09:48 | 09:57 | |
| 3 | B9.01 | 2010/09/29 | 01:21 | 01:26 | 01:29 | |
| 4 | B8.63 | 2010/09/28 | 21:07 | 21:12 | 21:18 | |
| 5 | B7.13 | 2010/10/01 | 09:25 | 10:01 | 10:51 | |
| 6 | B7.01 | 2010/09/28 | 14:43 | 15:05 | 15:11 | |
| 7 | B6.12 | 2010/09/29 | 09:34 | 09:37 | 09:41 | |
| 8 | B4.41 | 2010/09/27 | 00:14 | 00:18 | 00:21 | |
| 9 | B4.35 | 2010/09/26 | 14:11 | 14:16 | 14:23 | |
| 10 | B2.98 | 2010/10/03 | 04:09 | 04:38 | 05:03 |
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| Last X-flare | 2026/01/18 | X1.9 |
| Last M-flare | 2026/01/21 | M3.4 |
| Last geomagnetic storm | 2026/01/22 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 119.1 -4.9 |
| Last 30 days | 122 +10.9 |