Sunspot region AR8337
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1998/09/17 | 2 | 10 | BXO | S39E42 | |
| 1998/09/18 | 4 | 10 | BXO | S40E28 | |
| 1998/09/19 | 4 | 40 | CSO | S40E19 | |
| 1998/09/20 | 4 | 30 | CRO | S39E02 | |
| 1998/09/21 | 4 | 20 | BXO | S40W11 | |
| 1998/09/22 | 6 | 10 | BXO | S40W22 | |
| 1998/09/24 | 1 | 0 | AXX | S36W50 |
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Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/01 | M2.5 |
| Last geomagnetic storm | 2025/03/27 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2025 | 154.6 +17.6 |
| April 2025 | 152.5 -2.1 |
| Last 30 days | 130.7 -17.9 |