Sunspot region AR12440
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2015/10/27 | 6 | 40 | CSO | N20W02 | |
| 2015/10/28 | 4 | 30 | DAO | N19W16 | |
| 2015/10/29 | 4 | 30 | DSO | N19W31 | |
| 2015/10/30 | 3 | 30 | DAO | N20W44 | |
| 2015/10/31 | 2 | 10 | BXO | N19W57 | |
| 2015/11/01 | 1 | 10 | AXX | N18W72 |
2015/10/27
2015/10/28
2015/10/29
2015/10/30
2015/10/31
2015/11/01
|
2015/10/27
2015/10/28
2015/10/29
2015/10/30
2015/10/31
2015/11/01
|
| C |
|---|
| 1 |
The top 1 solar flares from sunspot region 12440
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C1.57 | 2015/10/29 | 01:03 | 01:25 | 01:40 |
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
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 | 2025/12/27 | M5.1 |
| Last geomagnetic storm | 2025/12/22 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 115.5 +23.7 |
| Last 30 days | 113.8 +28 |