| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/06/27 | 4 | 10 | BXO | N11E26 | |
| 1999/06/28 | 3 | 10 | BXO | N12E13 | |
| 1999/06/29 | 1 | 10 | AXX | N12E00 | |
| 1999/07/01 | 6 | 10 | BXO | N12W25 | |
| 1999/07/02 | 3 | 20 | AXX | N11W39 | |
| 1999/07/03 | 1 | 0 | AXX | N12W54 |
| C |
|---|
| 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C4.31 | 1999/07/01 | 15:29 | 15:35 | 15:45 |
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| Last X-flare | 2026/01/18 | X1.9 |
| Last M-flare | 2026/01/21 | M3.4 |
| Last geomagnetic storm | 2026/01/28 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 119.2 -4.8 |
| Last 30 days | 119.5 +1.5 |