Sunspot region AR8531
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/05/05 | 2 | 30 | CSO | N18E65 | |
| 1999/05/06 | 5 | 30 | BXO | N18E52 | |
| 1999/05/07 | 4 | 10 | BXO | N19E38 | |
| 1999/05/08 | 3 | 10 | BXO | N18E24 | |
| 1999/05/09 | 4 | 20 | CRO | N19E08 | |
| 1999/05/10 | 3 | 10 | BXO | N20W05 | |
| 1999/05/13 | 2 | 0 | AXX | N20W45 | |
| 1999/05/15 | 2 | 10 | BXO | N20W74 |
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 |