Sunspot region AR11870
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2013/10/15 | 3 | 30 | CRO | S13W06 | |
| 2013/10/16 | 8 | 20 | CRO | S14W21 | |
| 2013/10/17 | 2 | 10 | BXO | S13W35 | |
| 2013/10/18 | 1 | 10 | AXX | S13W49 | |
| 2013/10/19 | 3 | 30 | CAO | S15W58 | |
| 2013/10/20 | 3 | 10 | BXO | S15W72 |
2013/10/15
2013/10/16
2013/10/17
2013/10/18
2013/10/19
2013/10/20
|
2013/10/15
2013/10/16
2013/10/17
2013/10/18
2013/10/19
2013/10/20
|
| C |
|---|
| 1 |
The top 1 solar flares from sunspot region 11870
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C2.62 | 2013/10/16 | 15:03 | 15:20 | 15:34 |
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 162AR 4299 148AR4294 / 4296 / 4298 422Space Weather Memes 762New paper on the Gannon Storm 10-11 May 2024 2
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 | 2025/12/09 | M1.1 |
| 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 | 160.6 +68.8 |
| Last 30 days | 108.7 +12.8 |