| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2002/05/11 | 3 | 280 | CHO | S21E71 | |
| 2002/05/12 | 6 | 420 | EKO | S21E61 | |
| 2002/05/13 | 8 | 430 | EKO | S22E50 | |
| 2002/05/14 | 5 | 360 | EKO | S22E38 | |
| 2002/05/15 | 6 | 410 | EKO | S22E26 | |
| 2002/05/16 | 7 | 420 | EKO | S22E14 | |
| 2002/05/17 | 4 | 370 | EKO | S22E01 | |
| 2002/05/18 | 5 | 390 | CHO | S21W15 | |
| 2002/05/19 | 2 | 380 | CHO | S21W31 | |
| 2002/05/20 | 1 | 330 | HKX | S21W44 | |
| 2002/05/21 | 2 | 320 | HKX | S21W57 | |
| 2002/05/22 | 2 | 340 | HHX | S20W70 | |
| 2002/05/23 | 1 | 300 | HHX | S21W84 |
| C | M |
|---|---|
| 2 | 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.54 | 2002/05/15 | 08:00 | 08:13 | 08:25 | |
| 2 | C4.61 | 2002/05/14 | 09:32 | 09:48 | 09:59 | |
| 3 | C2.52 | 2002/05/13 | 03:10 | 03:42 | 03:52 |
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| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/09 | 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 | 114.3 +28.4 |
| Last 30 days | 102.4 +48.5 |