Sunspot region AR11272
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2011/08/17 | 2 | 10 | CRO | S19E67 | |
| 2011/08/18 | 2 | 60 | CSO | S19E55 | |
| 2011/08/19 | 3 | 60 | CSO | S22E41 | |
| 2011/08/20 | 2 | 30 | HAX | S21E27 | |
| 2011/08/21 | 5 | 50 | CAO | S22E15 | |
| 2011/08/22 | 8 | 90 | DAO | S21E03 | |
| 2011/08/23 | 11 | 60 | DSI | S21W08 | |
| 2011/08/24 | 6 | 40 | DSO | S21W20 | |
| 2011/08/25 | 4 | 20 | CRO | S21W36 | |
| 2011/08/26 | 1 | 0 | AXX | S21W49 |
| B | C |
|---|---|
| 11 | 10 |
The top 10 solar flares from sunspot region 11272
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C4.86 | 2011/08/15 | 11:10 | 11:20 | 11:33 | |
| 2 | C3.83 | 2011/08/17 | 16:16 | 16:31 | 16:45 | |
| 3 | C3.29 | 2011/08/17 | 04:19 | 04:29 | 05:07 | |
| 4 | C2.8 | 2011/08/17 | 01:44 | 02:54 | 03:44 | |
| 5 | C2.18 | 2011/08/21 | 18:15 | 18:40 | 18:46 | |
| 6 | C1.78 | 2011/08/18 | 06:40 | 06:44 | 06:51 | |
| 7 | C1.76 | 2011/08/21 | 23:10 | 23:16 | 23:26 | |
| 8 | C1.37 | 2011/08/18 | 12:41 | 13:11 | 13:19 | |
| 9 | C1.2 | 2011/08/20 | 12:25 | 12:36 | 12:50 | |
| 10 | C1.18 | 2011/08/17 | 07:52 | 07:57 | 08:00 |
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Space weather facts
| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/04 | M6.0 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 175.4 +83.6 |
| Last 30 days | 107.3 +14.6 |