Sunspot region AR8021
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1997/03/09 | 2 | 10 | AXX | S30E42 | |
| 1997/03/10 | 2 | 10 | BXO | S29E30 | |
| 1997/03/15 | 4 | 10 | BXO | S29W32 | |
| 1997/03/16 | 5 | 10 | BXO | S31W45 | |
| 1997/03/17 | 1 | 0 | AXX | S33W54 |
| B |
|---|
| 1 |
The top 1 solar flares from sunspot region 8021
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | B2.37 | 1997/03/16 | 00:38 | 00:49 | 00:57 |
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Saturday, 14 September 2024
X4.5 solar flare with a fast coronal mass ejection
Thursday, 12 September 2024
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Severe G4 geomagnetic storm
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Space weather facts
| Last X-flare | 2024/09/14 | X4.54 |
| Last M-flare | 2024/09/23 | M1.3 |
| 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 | 144.6 -70.9 |
| Last 30 days | 149.7 -62.9 |