Sunspot region AR11817
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2013/08/11 | 3 | 10 | CRO | S22E34 | |
| 2013/08/12 | 12 | 50 | DAO | S22E22 | |
| 2013/08/13 | 23 | 180 | DAC | S23E07 | |
| 2013/08/14 | 22 | 240 | ESC | S21W04 | |
| 2013/08/15 | 22 | 220 | ESC | S21W17 | |
| 2013/08/16 | 22 | 260 | EKC | S21W31 | |
| 2013/08/17 | 13 | 140 | EAI | S21W44 | |
| 2013/08/18 | 8 | 150 | ESO | S21W57 | |
| 2013/08/19 | 6 | 140 | CAO | S21W70 | |
| 2013/08/20 | 3 | 60 | CSO | S19W88 | |
| 2013/08/21 | 3 | 60 | CSO | S19W0* |
2013/08/11
2013/08/12
2013/08/13
2013/08/14
2013/08/15
2013/08/16
2013/08/17
2013/08/18
2013/08/19
2013/08/20
2013/08/21
|
2013/08/11
2013/08/12
2013/08/13
2013/08/14
2013/08/15
2013/08/16
2013/08/17
2013/08/18
2013/08/19
2013/08/20
2013/08/21
|
| B | C | M |
|---|---|---|
| 5 | 12 | 2 |
The top 10 solar flares from sunspot region 11817
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M2.18 | 2013/08/12 | 10:21 | 10:41 | 10:47 | |
| 2 | M1.21 | 2013/08/11 | 21:47 | 21:58 | 22:11 | |
| 3 | C9.66 | 2013/08/11 | 21:24 | 21:31 | 21:38 | |
| 4 | C5.11 | 2013/08/14 | 16:50 | 16:55 | 17:11 | |
| 5 | C3.13 | 2013/08/19 | 09:10 | 09:20 | 09:23 | |
| 6 | C3.05 | 2013/08/11 | 19:27 | 19:32 | 20:03 | |
| 7 | C2.92 | 2013/08/11 | 14:18 | 14:34 | 14:49 | |
| 8 | C2.26 | 2013/08/14 | 22:49 | 22:55 | 23:02 | |
| 9 | C2.16 | 2013/08/14 | 10:19 | 10:37 | 11:39 | |
| 10 | C2.14 | 2013/08/14 | 17:47 | 17:53 | 17:58 |
Latest news
Sunday, 7 December 2025
M8.1 solar flare with earth-directed CME
Monday, 1 December 2025
X1.9 solar flare, Coronal hole faces Earth
Friday, 14 November 2025
X4.0 solar flare
Latest forum messages
AR4299 M8.1 CME 2025/12/06 303Growth of Cycle 25 976Ask a powergrid operator anything 45Light pillar 11AR4294 / 4296 / 4298 441
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 | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/10 | M1.2 |
| 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 | 157.7 +65.9 |
| Last 30 days | 108.9 +11.4 |