| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2013/04/02 | 1 | 60 | HSX | N12E65 | |
| 2013/04/03 | 1 | 60 | HSX | N13E52 | |
| 2013/04/04 | 1 | 100 | HSX | N12E39 | |
| 2013/04/05 | 1 | 50 | HSX | N12E27 | |
| 2013/04/06 | 6 | 80 | CSO | N13E14 | |
| 2013/04/07 | 6 | 60 | CSO | N12E02 | |
| 2013/04/08 | 3 | 60 | CSO | N14W12 | |
| 2013/04/09 | 3 | 60 | CSO | N12W26 | |
| 2013/04/10 | 2 | 20 | HSX | N13W38 | |
| 2013/04/11 | 1 | 50 | HSX | N13W52 | |
| 2013/04/12 | 1 | 70 | HSX | N13W66 | |
| 2013/04/13 | 1 | 40 | HSX | N14W79 |
| C |
|---|
| 2 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C2.34 | 2013/04/08 | 15:42 | 15:50 | 16:17 | |
| 2 | C1.38 | 2013/04/08 | 17:56 | 18:00 | 18:12 |
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| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/04 | M1.0 |
| Last geomagnetic storm | 2026/04/03 | Kp7- (G3) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2026 | 85.9 +7.7 |
| April 2026 | 122.8 +36.9 |
| Last 30 days | 99.9 +42.1 |