| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2005/05/09 | 8 | 340 | DKO | N12E71 | |
| 2005/05/10 | 7 | 540 | EHI | N14E60 | |
| 2005/05/11 | 9 | 390 | EKI | N12E50 | |
| 2005/05/12 | 12 | 450 | EKI | N12E33 | |
| 2005/05/13 | 10 | 300 | EHI | N12E19 | |
| 2005/05/14 | 19 | 310 | DHI | N12E06 | |
| 2005/05/15 | 22 | 350 | DHI | N11W07 | |
| 2005/05/16 | 14 | 290 | DHO | N11W20 | |
| 2005/05/17 | 11 | 300 | DHO | N11W35 | |
| 2005/05/18 | 1 | 220 | HKX | N11W50 | |
| 2005/05/19 | 9 | 280 | CHO | N12W62 | |
| 2005/05/20 | 1 | 270 | HHX | N12W75 | |
| 2005/05/21 | 1 | 150 | HAX | N12W88 |
| B | C | M | X |
|---|---|---|---|
| 2 | 18 | 3 | 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | X1.15 | 2005/05/13 | 16:13 | 16:57 | 17:28 | |
| 2 | M2.31 | 2005/05/12 | 07:27 | 07:33 | 07:37 | |
| 3 | M2.04 | 2005/05/12 | 17:33 | 17:41 | 17:45 | |
| 4 | M1.36 | 2005/05/12 | 01:10 | 01:13 | 01:20 | |
| 5 | C9.87 | 2005/05/11 | 16:56 | 17:00 | 17:05 | |
| 6 | C8.29 | 2005/05/10 | 19:38 | 19:58 | 20:05 | |
| 7 | C5.29 | 2005/05/09 | 20:59 | 21:09 | 21:27 | |
| 8 | C3.93 | 2005/05/09 | 22:45 | 23:05 | 23:11 | |
| 9 | C3.93 | 2005/05/09 | 23:26 | 23:35 | 23:48 | |
| 10 | C3.1 | 2005/05/12 | 22:44 | 22:55 | 23:12 |
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| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/21 | M1.3 |
| Last geomagnetic storm | 2025/12/22 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 114.3 +22.5 |
| Last 30 days | 109.4 +22.7 |