Sunspot region AR11911
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2013/12/01 | 4 | 20 | CSO | S12E16 | |
| 2013/12/02 | 8 | 50 | DAO | S12E01 | |
| 2013/12/03 | 6 | 50 | DAO | S11W11 | |
| 2013/12/04 | 2 | 20 | HRX | S11W24 | |
| 2013/12/05 | 2 | 10 | BXO | S11W38 | |
| 2013/12/06 | 1 | 10 | AXX | S11W52 | |
| 2013/12/07 | 1 | 10 | AXX | S11W64 |
2013/12/01
2013/12/02
2013/12/03
2013/12/04
2013/12/05
2013/12/06
2013/12/07
|
2013/12/01
2013/12/02
2013/12/03
2013/12/04
2013/12/05
2013/12/06
2013/12/07
|
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Space weather facts
| Last X-flare | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/05 | M1.3 |
| 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 |
| February 2026 | 141.3 +17.3 |
| Last 30 days | 123.1 +14.7 |