| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2007/03/29 | 2 | 70 | HAX | N07E62 | |
| 2007/03/30 | 4 | 40 | CSO | N06E48 | |
| 2007/03/31 | 3 | 10 | BXO | N07E34 | |
| 2007/04/01 | 5 | 20 | CSO | N06E21 | |
| 2007/04/02 | 3 | 50 | CRO | N08E08 | |
| 2007/04/03 | 2 | 20 | AXX | N07W05 | |
| 2007/04/04 | 1 | 10 | AXX | N08W19 |
| B |
|---|
| 2 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | B3.13 | 2007/03/31 | 01:28 | 01:43 | 01:48 | |
| 2 | B1.5 | 2007/03/28 | 19:25 | 19:28 | 19:32 |
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| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/09 | M1.0 |
| Last geomagnetic storm | 2026/04/03 | Kp7- (G3) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2026 | 85.9 +7.7 |
| April 2026 | 92 +6.1 |
| Last 30 days | 93.7 +33.5 |