| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2004/03/13 | 6 | 20 | CSO | N19W05 | |
| 2004/03/14 | 10 | 110 | DAO | N19W19 | |
| 2004/03/15 | 11 | 100 | DSO | N19W32 | |
| 2004/03/16 | 8 | 90 | CSO | N19W45 | |
| 2004/03/17 | 1 | 40 | HSX | N19W58 | |
| 2004/03/18 | 1 | 40 | HSX | N19W72 |
| B | C |
|---|---|
| 1 | 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C2.35 | 2004/03/17 | 09:18 | 09:31 | 09:44 | |
| 2 | B4.53 | 2004/03/17 | 01:50 | 01:56 | 02:01 |
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| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/10 | M1.9 |
| 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 | 157.7 +65.9 |
| Last 30 days | 108.9 +11.4 |