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, 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 1014Feb 8-9 CMEs 25AR4374 11Space Weather Memes 793Do the high-resolution sunspot counts point to more complex sunspots? 59
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Space weather facts
| Last X-flare | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/09 | M2.8 |
| 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 | 132.1 +19.5 |
| Last 30 days | 128.6 +27.4 |