| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1997/07/26 | 11 | 150 | DSO | N18W56 | |
| 1997/07/27 | 9 | 140 | DAO | N17W70 | |
| 1997/07/28 | 6 | 150 | DAO | N16W82 |
| B | C |
|---|---|
| 1 | 3 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C1.76 | 1997/07/25 | 05:15 | 05:41 | 06:58 | |
| 2 | C1.64 | 1997/07/25 | 18:45 | 18:55 | 18:59 | |
| 3 | C1.19 | 1997/07/25 | 15:33 | 15:39 | 15:48 | |
| 4 | B5.53 | 1997/07/26 | 00:12 | 00:16 | 00:18 |
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| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/12 | M1.1 |
| Last geomagnetic storm | 2025/12/12 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
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