Sunspot region AR11281
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2011/08/29 | 2 | 60 | CSO | S21E65 | |
| 2011/08/30 | 5 | 30 | CRO | S19E54 | |
| 2011/08/31 | 5 | 10 | BXO | S20E40 | |
| 2011/09/01 | 11 | 100 | CSI | S20E28 | |
| 2011/09/02 | 16 | 160 | DAO | S21E12 | |
| 2011/09/03 | 10 | 110 | DAO | S20E01 | |
| 2011/09/04 | 8 | 90 | DAO | S19W10 | |
| 2011/09/05 | 5 | 70 | CAO | S19W24 | |
| 2011/09/06 | 3 | 50 | CSO | S18W39 | |
| 2011/09/07 | 2 | 10 | BXO | S18W51 | |
| 2011/09/08 | 2 | 10 | BXO | S15W59 |
| B | C |
|---|---|
| 3 | 6 |
The top 9 solar flares from sunspot region 11281
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C7.88 | 2011/08/30 | 22:02 | 22:46 | 22:53 | |
| 2 | C3.46 | 2011/09/03 | 07:47 | 07:56 | 08:04 | |
| 3 | C2.74 | 2011/12/22 | 13:04 | 13:20 | 13:41 | |
| 4 | C2.69 | 2011/09/02 | 15:09 | 15:16 | 15:21 | |
| 5 | C1.75 | 2011/09/03 | 20:04 | 20:10 | 20:17 | |
| 6 | C1.19 | 2011/09/03 | 08:56 | 08:59 | 09:05 | |
| 7 | B8.91 | 2011/09/02 | 00:04 | 00:09 | 00:15 | |
| 8 | B7.67 | 2011/08/28 | 13:56 | 14:00 | 14:04 | |
| 9 | B4.75 | 2011/08/28 | 19:58 | 20:02 | 20:06 |
Latest news
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Latest forum messages
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!
Space weather facts
| Last X-flare | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/05 | M1.1 |
| Last geomagnetic storm | 2026/02/05 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 140.8 +28.2 |
| Last 30 days | 124.6 +17.7 |