Sunspot region AR8423
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1998/12/28 | 6 | 10 | BXO | N23W28 | |
| 1998/12/29 | 2 | 40 | HSX | N22W44 | |
| 1998/12/30 | 1 | 30 | HSX | N22W57 | |
| 1998/12/31 | 1 | 30 | HSX | N21W72 |
| C |
|---|
| 1 |
The top 1 solar flares from sunspot region 8423
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C3.97 | 1998/12/27 | 23:38 | 23:42 | 23:46 |
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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| 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 | 147.6 -68 |
| Last 30 days | 154.6 -57.2 |