Sunspot region AR13437
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2023/09/18 | 8 | 70 | DSO | S17W17 | |
| 2023/09/19 | 6 | 100 | DAO | S17W29 | |
| 2023/09/20 | 11 | 190 | DAI | S18W43 | |
| 2023/09/21 | 7 | 140 | DSO | S18W57 | |
| 2023/09/22 | 5 | 120 | DSO | S24W72 | |
| 2023/09/23 | 2 | 30 | CSO | S18W83 | |
| 2023/09/24 | 2 | 30 | CSO | S19W97 |
2023/09/18
2023/09/19
2023/09/20
2023/09/21
2023/09/22
2023/09/23
2023/09/24
|
2023/09/18
2023/09/19
2023/09/20
2023/09/21
2023/09/22
2023/09/23
2023/09/24
|
| C |
|---|
| 4 |
The top 4 solar flares from sunspot region 13437
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C9.8 | 2023/09/22 | 19:20 | 19:29 | 19:33 | |
| 2 | C3.1 | 2023/09/20 | 08:43 | 08:54 | 09:03 | |
| 3 | C3.1 | 2023/09/20 | 09:03 | 09:10 | 09:15 | |
| 4 | C2.1 | 2023/09/19 | 00:31 | 00:41 | 00:45 |
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
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Space weather facts
| Last X-flare | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/05 | M1.1 |
| 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 | 140.8 +28.2 |
| Last 30 days | 124.4 +17 |