| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2005/04/06 | 1 | 120 | HAX | S08E84 | |
| 2005/04/07 | 1 | 70 | HAX | S07E65 | |
| 2005/04/08 | 12 | 140 | DAI | S07E51 | |
| 2005/04/09 | 9 | 150 | DAO | S07E36 | |
| 2005/04/10 | 6 | 100 | DAI | S07E24 | |
| 2005/04/11 | 6 | 70 | DSO | S07E12 | |
| 2005/04/12 | 7 | 90 | CSO | S07W01 | |
| 2005/04/13 | 9 | 80 | DSO | S07W15 | |
| 2005/04/14 | 5 | 60 | CSO | S07W28 | |
| 2005/04/15 | 2 | 40 | HSX | S07W41 | |
| 2005/04/16 | 1 | 30 | HSX | S07W54 | |
| 2005/04/17 | 1 | 20 | HSX | S08W66 | |
| 2005/04/18 | 1 | 30 | HRX | S07W80 |
| B |
|---|
| 4 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | B8.09 | 2005/04/07 | 02:48 | 02:57 | 03:03 | |
| 2 | B4.8 | 2005/04/06 | 23:46 | 23:56 | 00:12 | |
| 3 | B3.4 | 2005/04/06 | 15:50 | 15:55 | 15:58 | |
| 4 | B1.87 | 2005/04/07 | 12:30 | 12:35 | 12:39 |
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| Last X-flare | 2026/02/03 | X1.5 |
| Last M-flare | 2026/02/03 | M7.3 |
| 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 |
| February 2026 | 114 -10 |
| Last 30 days | 118.1 +6.2 |