| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1997/05/31 | 1 | 0 | AXX | S28E55 | |
| 1997/06/01 | 6 | 30 | BXO | S29E41 | |
| 1997/06/02 | 10 | 50 | CRO | S29E28 | |
| 1997/06/03 | 13 | 120 | DSO | S28E15 | |
| 1997/06/04 | 10 | 150 | DSO | S28E03 | |
| 1997/06/05 | 6 | 110 | DSO | S28W13 | |
| 1997/06/06 | 5 | 120 | DAO | S27W24 | |
| 1997/06/07 | 5 | 110 | DAO | S28W37 | |
| 1997/06/08 | 7 | 90 | DSO | S28W50 | |
| 1997/06/09 | 4 | 30 | CSO | S28W65 | |
| 1997/06/10 | 2 | 20 | CRO | S28W80 |
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| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/04 | 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 | 125 +39.1 |
| Last 30 days | 98.7 +39 |