Sunspot region AR12388
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2015/07/17 | 4 | 20 | CAO | N08W53 | |
| 2015/07/19 | 2 | 10 | BXO | N14W81 |
2015/07/17
2015/07/19
|
2015/07/17
2015/07/19
|
| B | C |
|---|---|
| 1 | 1 |
The top 2 solar flares from sunspot region 12388
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C2.57 | 2015/07/18 | 14:28 | 14:42 | 14:52 | |
| 2 | B8.84 | 2015/07/20 | 04:32 | 04:52 | 05:05 |
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
Filaments and prominences 484Unexplained proton activity 109Feb 8-9 CMEs 26Current Farside Activity 373AR4374 14
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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 |