| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2015/03/13 | 3 | 10 | CRO | S07E60 | |
| 2015/03/14 | 4 | 10 | BXO | S07E47 | |
| 2015/03/15 | 1 | 10 | AXX | S05E32 | |
| 2015/03/16 | 1 | 10 | AXX | S05E19 | |
| 2015/03/17 | 1 | 0 | AXX | S04E05 | |
| 2015/03/20 | 2 | 10 | BXO | S04W38 |
| C | M |
|---|---|
| 1 | 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.02 | 2015/03/12 | 02:10 | 02:18 | 02:25 | |
| 2 | C2.27 | 2015/03/12 | 19:48 | 19:51 | 19:53 |
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| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/02/25 | M2.4 |
| Last geomagnetic storm | 2026/02/22 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (5%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| March 2026 | 85 -27.6 |
| Last 30 days | 71 -47.7 |