Sunspot region AR8738
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/10/21 | 2 | 10 | AXX | N16E28 | |
| 1999/10/22 | 3 | 20 | CSO | N17E13 | |
| 1999/10/23 | 3 | 20 | CSO | N17W01 | |
| 1999/10/24 | 6 | 20 | CSO | N17W13 | |
| 1999/10/25 | 6 | 30 | CSO | N18W27 | |
| 1999/10/26 | 4 | 20 | CRO | N18W40 | |
| 1999/10/27 | 3 | 10 | BXO | N17W53 | |
| 1999/10/28 | 2 | 90 | CSO | N17W67 | |
| 1999/10/29 | 1 | 0 | AXX | N17W80 |
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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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 |