Sunspot region AR12636
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2017/02/16 | 2 | 10 | AXX | N11E53 | |
| 2017/02/17 | 2 | 10 | HRX | N11E40 | |
| 2017/02/18 | 4 | 20 | CRO | N11E27 | |
| 2017/02/19 | 3 | 20 | BXO | N11E15 | |
| 2017/02/20 | 1 | 10 | AXX | N11E01 |
2017/02/16
2017/02/17
2017/02/18
2017/02/19
2017/02/20
|
2017/02/16
2017/02/17
2017/02/18
2017/02/19
2017/02/20
|
| A | B |
|---|---|
| 1 | 3 |
The top 4 solar flares from sunspot region 12636
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | B2.71 | 2017/02/15 | 12:34 | 12:43 | 12:46 | |
| 2 | B1.76 | 2017/02/17 | 09:27 | 09:32 | 09:38 | |
| 3 | B1.29 | 2017/02/17 | 09:53 | 09:56 | 09:58 | |
| 4 | A9.31 | 2017/02/15 | 20:48 | 20:51 | 20:54 |
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 1001Do the high-resolution sunspot counts point to more complex sunspots? 57Current Farside Activity 371Incoming & Unnumbered Active Regions 154Feb 8-9 CMEs 21
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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 | 135.3 +22.7 |
| Last 30 days | 127.2 +23.7 |