| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1998/09/29 | 2 | 10 | AXX | S26E65 | |
| 1998/09/30 | 1 | 0 | AXX | S26E48 | |
| 1998/10/02 | 2 | 10 | AXX | S26E29 | |
| 1998/10/03 | 5 | 10 | BXO | S27E18 | |
| 1998/10/04 | 4 | 10 | BXO | S27E06 | |
| 1998/10/06 | 1 | 0 | AXX | S23W26 | |
| 1998/10/07 | 4 | 20 | BXO | S24W38 | |
| 1998/10/08 | 4 | 20 | BXO | S25W51 | |
| 1998/10/09 | 4 | 10 | BXO | S25W69 | |
| 1998/10/10 | 2 | 10 | BXO | S25W81 |
| B | C |
|---|---|
| 1 | 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C2.04 | 1998/10/01 | 17:09 | 17:16 | 17:34 | |
| 2 | B6.43 | 1998/10/09 | 16:05 | 16:08 | 16:12 |
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| Last X-flare | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/12 | M1.4 |
| 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 | 125.3 +12.7 |
| Last 30 days | 130.4 +32.7 |