Sunspot region AR12643
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2017/03/22 | 1 | 20 | HRX | N09E72 | |
| 2017/03/23 | 2 | 30 | HSX | N08E56 | |
| 2017/03/24 | 2 | 20 | HRX | N08E42 | |
| 2017/03/25 | 2 | 10 | HRX | N08E29 | |
| 2017/03/26 | 1 | 10 | AXX | N08E16 |
2017/03/22
2017/03/23
2017/03/24
2017/03/25
2017/03/26
|
2017/03/22
2017/03/23
2017/03/24
2017/03/25
2017/03/26
|
| B |
|---|
| 1 |
The top 1 solar flares from sunspot region 12643
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | B4.18 | 2017/03/22 | 18:21 | 18:58 | 19:15 |
Latest news
Thursday, 11 September 2025
Coronal hole faces Earth
Sunday, 31 August 2025
M2.7 solar flare with earth-directed CME!
Tuesday, 5 August 2025
M4.4 solar flare from sunspot region 4168
Latest forum messages
Incoming & Unnumbered Active Regions 2111Coronal Hole 85 3CMEs from 2025/10/03 52Comet C/2025 A6 (Lemmon) 72Unspecified geomagnetic activity 3204
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Space weather facts
| Last X-flare | 2025/06/19 | X1.9 |
| Last M-flare | 2025/10/03 | M1.2 |
| Last geomagnetic storm | 2025/10/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| September 2025 | 129.8 -3.7 |
| October 2025 | 140.1 +10.3 |
| Last 30 days | 131.3 -1.2 |