| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1997/07/18 | 1 | 0 | AXX | N23E66 | |
| 1997/07/19 | 1 | 0 | AXX | N23E52 | |
| 1997/07/24 | 7 | 30 | DRO | N27W09 | |
| 1997/07/26 | 6 | 20 | BXO | N28W37 | |
| 1997/07/27 | 3 | 10 | AXX | N28W52 | |
| 1997/07/28 | 2 | 10 | AXX | N28W65 |
| B | C |
|---|---|
| 2 | 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C1.24 | 1997/07/27 | 03:25 | 03:33 | 03:39 | |
| 2 | B3.53 | 1997/07/27 | 08:10 | 08:16 | 08:22 | |
| 3 | B3.51 | 1997/07/24 | 06:51 | 06:57 | 07:11 |
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| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/08 | M2.0 |
| 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 | 162.7 +70.9 |
| Last 30 days | 108 +13.3 |