Sunspot region AR8687
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/09/03 | 6 | 20 | CRO | N11W07 | |
| 1999/09/04 | 6 | 10 | BXO | N10W21 | |
| 1999/09/05 | 10 | 20 | BXO | N11W33 | |
| 1999/09/06 | 5 | 30 | CSO | N10W48 | |
| 1999/09/07 | 6 | 50 | DAO | N10W60 | |
| 1999/09/08 | 7 | 20 | BXO | N12W73 | |
| 1999/09/09 | 2 | 50 | HSX | N09W87 |
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
Latest forum messages
Growth of Cycle 25 688AR 3825 220Unspecified geomagnetic activity 1447Some weird thing on farside seismic signature 11Density and Temperature ?s 3
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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 |