Sunspot region AR12400
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2015/08/12 | 4 | 10 | BXO | N17E36 | |
| 2015/08/13 | 2 | 10 | BXO | N17E22 | |
| 2015/08/14 | 7 | 50 | DAO | N17E07 | |
| 2015/08/15 | 5 | 50 | CAO | N17W05 | |
| 2015/08/16 | 5 | 30 | CAO | N18W18 | |
| 2015/08/17 | 2 | 10 | AXX | N17W33 |
2015/08/12
2015/08/13
2015/08/14
2015/08/15
2015/08/16
2015/08/17
|
2015/08/12
2015/08/13
2015/08/14
2015/08/15
2015/08/16
2015/08/17
|
| B |
|---|
| 2 |
The top 2 solar flares from sunspot region 12400
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | B8.04 | 2015/08/13 | 10:30 | 10:45 | 11:00 | |
| 2 | B6.57 | 2015/08/11 | 16:56 | 17:00 | 17:09 |
Latest news
Sunday, 1 February 2026
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X1.9 solar flare with earth-directed CME
Latest forum messages
Yes, we really went to the moon before. 6Do the high-resolution sunspot counts point to more complex sunspots? 64AR4366 1029Feb 8-9 CMEs 28Current Farside Activity 374
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Space weather facts
| Last X-flare | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/12 | M1.4 |
| Last geomagnetic storm | 2026/02/05 | Kp5+ (G1) |
| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 125.3 +12.7 |
| Last 30 days | 130.4 +32.7 |