| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/06/22 | 3 | 40 | DAO | N23E53 | |
| 1999/06/23 | 5 | 40 | CSO | N22E40 | |
| 1999/06/24 | 1 | 20 | HSX | N20E27 | |
| 1999/06/25 | 1 | 20 | HRX | N21E13 | |
| 1999/06/26 | 4 | 10 | BXO | N21E00 | |
| 1999/06/27 | 1 | 10 | HSX | N22W12 |
| C |
|---|
| 4 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C5.93 | 1999/06/26 | 16:42 | 16:50 | 16:53 | |
| 2 | C4.03 | 1999/06/29 | 12:40 | 12:47 | 12:55 | |
| 3 | C4 | 1999/07/01 | 07:04 | 07:09 | 07:19 | |
| 4 | C3.17 | 1999/06/24 | 09:07 | 09:22 | 09:32 |
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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 |