Sunspot region AR11733
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2013/04/27 | 3 | 30 | CSO | S16W30 | |
| 2013/04/28 | 2 | 30 | CSO | S17W42 | |
| 2013/04/29 | 2 | 30 | CRO | S17W56 | |
| 2013/04/30 | 1 | 10 | AXX | S17W70 | |
| 2013/05/01 | 1 | 10 | AXX | S17W84 | |
| 2013/05/02 | 1 | 10 | AXX | S17W98 |
2013/04/28
2013/04/29
2013/04/30
2013/05/01
2013/05/02
|
2013/04/28
2013/04/29
2013/04/30
2013/05/01
2013/05/02
|
| C |
|---|
| 2 |
The top 2 solar flares from sunspot region 11733
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C6.32 | 2013/04/28 | 20:10 | 20:17 | 20:26 | |
| 2 | C5.78 | 2013/04/29 | 19:26 | 19:32 | 19:36 |
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
AR4366 1032AR4374 23Unspecified geomagnetic activity 72Incoming & Unnumbered Active Regions 171Do the high-resolution sunspot counts point to more complex sunspots? 73
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 | X4.21 |
| Last M-flare | 2026/02/16 | M2.4 |
| Last geomagnetic storm | 2026/02/16 | Kp6 (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 100.6 -12 |
| Last 30 days | 117.7 +9.9 |