Open Access
Table 1.
Technical description of observed ARs.
| NOAA 13169 | NOAA 13171 | |
|---|---|---|
| Hale class | β/β-γ | β |
| Start date | 2022/12/17 | 2022/12/19 |
| End date | 2022/12/30 | 2022/12/31 |
| Max. sunspot area | 490 | 250 (millionths) |
| Max. nbr of spots | 30 | 12 |
| Associated flares | 3 M-class | 6 C-class |
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