Sunspot region AR8504
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/03/31 | 3 | 140 | HSX | S28E61 | |
| 1999/04/01 | 4 | 90 | CAO | S28E47 | |
| 1999/04/02 | 4 | 110 | CAO | S28E36 | |
| 1999/04/03 | 7 | 70 | CSO | S28E23 | |
| 1999/04/04 | 10 | 70 | DSO | S28E11 | |
| 1999/04/05 | 10 | 50 | DSO | S28W02 | |
| 1999/04/06 | 11 | 50 | DSO | S28W15 | |
| 1999/04/07 | 6 | 20 | BXO | S28W27 | |
| 1999/04/08 | 4 | 10 | BXO | S27W40 |
Latest news
Saturday, 14 September 2024
X4.5 solar flare with a fast coronal mass ejection
Thursday, 12 September 2024
G3 geomagnetic storm watch due to CME passage
Monday, 12 August 2024
Severe G4 geomagnetic storm
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Space weather facts
| Last X-flare | 2024/09/14 | X4.54 |
| Last M-flare | 2024/09/14 | M3.0 |
| Last geomagnetic storm | 2024/09/17 | Kp8- (G4) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| August 2024 | 215.5 +19 |
| September 2024 | 151.6 -63.9 |
| Last 30 days | 158.3 -54.2 |