Sunspot region AR11539
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2012/08/03 | 4 | 30 | CRO | S22E60 | |
| 2012/08/04 | 3 | 10 | BXO | S23E45 | |
| 2012/08/05 | 3 | 20 | CRO | S22E31 | |
| 2012/08/06 | 1 | 10 | HRX | S23E18 | |
| 2012/08/07 | 1 | 0 | AXX | S23E04 | |
| 2012/08/09 | 2 | 20 | CSO | S22W20 | |
| 2012/08/10 | 1 | 10 | AXX | S20W29 |
| C |
|---|
| 3 |
The top 3 solar flares from sunspot region 11539
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C5.11 | 2012/08/04 | 11:04 | 15:00 | 16:49 | |
| 2 | C4.07 | 2012/08/03 | 05:51 | 06:00 | 06:08 | |
| 3 | C1.7 | 2012/08/05 | 05:46 | 06:25 | 08:03 |
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Space weather facts
| Last X-flare | 2025/06/19 | X1.9 |
| Last M-flare | 2025/10/03 | M1.2 |
| Last geomagnetic storm | 2025/10/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| September 2025 | 129.8 -3.7 |
| October 2025 | 140.1 +10.3 |
| Last 30 days | 131.3 -1.2 |