Sunspot region AR11913
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2013/12/03 | 4 | 40 | DAO | S13W56 | |
| 2013/12/04 | 9 | 90 | CAO | S15W69 | |
| 2013/12/05 | 5 | 130 | DAO | S14W84 |
2013/12/03
2013/12/04
2013/12/05
|
2013/12/03
2013/12/04
2013/12/05
|
| C |
|---|
| 6 |
The top 6 solar flares from sunspot region 11913
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C6.76 | 2013/12/04 | 04:38 | 04:58 | 05:22 | |
| 2 | C3.56 | 2013/12/02 | 14:34 | 14:44 | 15:09 | |
| 3 | C1.74 | 2013/12/03 | 22:13 | 22:24 | 22:41 | |
| 4 | C1.63 | 2013/12/02 | 09:52 | 10:20 | 10:34 | |
| 5 | C1.37 | 2013/12/02 | 12:09 | 12:12 | 12:16 | |
| 6 | C1.34 | 2013/12/02 | 01:32 | 01:47 | 02:03 |
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Space weather facts
| Last X-flare | 2026/01/18 | X1.9 |
| Last M-flare | 2026/01/21 | M3.4 |
| Last geomagnetic storm | 2026/01/28 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 119.2 -4.8 |
| Last 30 days | 119.5 +1.5 |