Sunspot region AR8164
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1998/02/24 | 4 | 20 | BXO | N17E14 | |
| 1998/02/25 | 16 | 70 | DAI | N16E01 | |
| 1998/02/26 | 19 | 130 | DAO | N17W12 | |
| 1998/02/27 | 18 | 120 | DAI | N16W25 | |
| 1998/02/28 | 15 | 90 | DAO | N17W37 | |
| 1998/03/01 | 5 | 30 | CRO | N16W51 | |
| 1998/03/02 | 4 | 60 | CSO | N15W66 | |
| 1998/03/03 | 1 | 20 | AXX | N15W82 |
| B | C |
|---|---|
| 4 | 1 |
The top 5 solar flares from sunspot region 8164
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C1.31 | 1998/02/24 | 13:31 | 13:40 | 13:45 | |
| 2 | B7.54 | 1998/02/24 | 10:39 | 10:46 | 10:48 | |
| 3 | B6.97 | 1998/02/24 | 09:25 | 09:31 | 09:37 | |
| 4 | B6.27 | 1998/02/24 | 12:35 | 12:39 | 12:41 | |
| 5 | B6.11 | 1998/02/24 | 11:30 | 11:51 | 11:54 |
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| Monthly mean Sunspot Number | |
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