Sunspot region AR8145
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1998/01/25 | 5 | 20 | BXO | N28E59 | |
| 1998/01/26 | 3 | 30 | BXO | N29E48 | |
| 1998/01/27 | 5 | 20 | BXO | N28E35 | |
| 1998/01/28 | 6 | 20 | BXO | N28E24 | |
| 1998/01/29 | 7 | 20 | BXO | N28E11 | |
| 1998/01/30 | 4 | 10 | BXO | N28W02 | |
| 1998/01/31 | 4 | 10 | BXO | N28W14 | |
| 1998/02/01 | 2 | 30 | AXX | N28W27 | |
| 1998/02/02 | 3 | 10 | BXO | N28W41 |
| B | C | M |
|---|---|---|
| 1 | 1 | 1 |
The top 3 solar flares from sunspot region 8145
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.8 | 1998/01/25 | 21:26 | 21:36 | 21:43 | |
| 2 | C1.76 | 1998/01/26 | 14:36 | 14:47 | 14:56 | |
| 3 | B9.19 | 1998/01/26 | 03:49 | 03:52 | 03:59 |
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| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
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| September 2024 | 149.4 -66.1 |
| Last 30 days | 156 -55.7 |