| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1998/02/25 | 5 | 10 | BXO | S27E17 | |
| 1998/02/26 | 7 | 60 | DAO | S26E04 | |
| 1998/02/27 | 8 | 70 | DAO | S26W09 | |
| 1998/02/28 | 9 | 30 | CAO | S26W22 | |
| 1998/03/01 | 3 | 20 | BXO | S26W33 | |
| 1998/03/02 | 5 | 20 | BXO | S26W45 | |
| 1998/03/03 | 3 | 10 | BXO | S25W56 |
| B |
|---|
| 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | B9.86 | 1998/02/26 | 15:38 | 15:56 | 16:09 |
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| Last X-flare | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/09 | M2.8 |
| Last geomagnetic storm | 2026/02/05 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 135.3 +22.7 |
| Last 30 days | 129.4 +28.1 |