| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1997/10/11 | 7 | 10 | BXO | N23W24 | |
| 1997/10/12 | 5 | 10 | BXO | N21W37 | |
| 1997/10/13 | 8 | 20 | BXO | N20W50 | |
| 1997/10/14 | 4 | 20 | BXO | N20W63 | |
| 1997/10/15 | 1 | 0 | AXX | N21W74 |
| B | C |
|---|---|
| 1 | 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C1.41 | 1997/10/13 | 23:11 | 23:18 | 23:23 | |
| 2 | B2.39 | 1997/10/13 | 00:40 | 00:45 | 00:49 |
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| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/04 | M6.0 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 175.4 +83.6 |
| Last 30 days | 107.3 +14.6 |