Sunspot region AR12640
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2017/02/27 | 2 | 10 | BXO | N11E24 | |
| 2017/02/28 | 4 | 20 | BXO | N09E11 | |
| 2017/03/01 | 2 | 30 | AXX | N08W04 | |
| 2017/03/02 | 2 | 10 | AXX | N09W18 | |
| 2017/03/03 | 1 | 10 | AXX | N08W33 |
2017/02/27
2017/02/28
2017/03/01
2017/03/02
2017/03/03
|
2017/02/27
2017/02/28
2017/03/01
2017/03/02
2017/03/03
|
| B |
|---|
| 2 |
The top 2 solar flares from sunspot region 12640
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | B4.01 | 2017/02/26 | 23:11 | 23:18 | 23:25 | |
| 2 | B1.6 | 2017/02/27 | 04:57 | 05:00 | 05:04 |
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
Coronal Hole 85 2CMEs from 2025/10/03 47Unspecified geomagnetic activity 3204Incoming & Unnumbered Active Regions 2108MODELO MAGNETOSFERA 3
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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 |