Sunspot region AR11553
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2012/08/24 | 1 | 150 | HSX | S23E50 | |
| 2012/08/25 | 1 | 90 | HSX | S22E46 | |
| 2012/08/26 | 3 | 150 | CSO | S21E33 | |
| 2012/08/27 | 6 | 110 | CSO | S21E18 | |
| 2012/08/28 | 4 | 120 | DSO | S18E05 | |
| 2012/08/29 | 3 | 110 | CSO | S21W07 | |
| 2012/08/30 | 5 | 130 | CSO | S21W20 | |
| 2012/08/31 | 7 | 150 | DSO | S21W30 | |
| 2012/09/01 | 9 | 180 | DAO | S21W47 | |
| 2012/09/02 | 8 | 150 | DAI | S22W57 | |
| 2012/09/03 | 5 | 140 | DAI | S22W69 | |
| 2012/09/04 | 3 | 90 | DSO | S21W82 |
| C |
|---|
| 6 |
The top 6 solar flares from sunspot region 11553
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C4.49 | 2012/09/02 | 10:15 | 10:21 | 10:26 | |
| 2 | C2.83 | 2012/09/01 | 19:39 | 19:45 | 20:29 | |
| 3 | C2.22 | 2012/09/01 | 17:33 | 17:37 | 17:48 | |
| 4 | C1.65 | 2012/08/29 | 23:40 | 23:44 | 23:47 | |
| 5 | C1.64 | 2012/09/02 | 13:37 | 13:42 | 13:48 | |
| 6 | C1.26 | 2012/09/04 | 23:10 | 00:04 | 00:22 |
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| 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 |