Sunspot region AR9913
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2002/04/20 | 6 | 30 | BXO | S15E23 | |
| 2002/04/21 | 6 | 30 | CSO | S16E10 | |
| 2002/04/22 | 8 | 10 | BXO | S17W02 | |
| 2002/04/23 | 1 | 20 | HRX | S15W19 | |
| 2002/04/24 | 6 | 30 | CSO | S15W31 | |
| 2002/04/25 | 13 | 40 | CSO | S16W44 | |
| 2002/04/26 | 6 | 40 | CSO | S14W58 | |
| 2002/04/27 | 6 | 40 | CRO | S15W72 |
| C |
|---|
| 4 |
The top 4 solar flares from sunspot region 9913
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C2.99 | 2002/04/24 | 10:46 | 10:53 | 11:00 | |
| 2 | C2.54 | 2002/04/24 | 05:35 | 05:48 | 05:55 | |
| 3 | C2.47 | 2002/04/24 | 14:20 | 14:34 | 14:41 | |
| 4 | C2 | 2002/04/24 | 06:25 | 06:42 | 06:57 |
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| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/27 | M5.1 |
| Last geomagnetic storm | 2025/12/22 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
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| December 2025 | 114.3 +22.5 |
| Last 30 days | 111.6 +25.7 |