Sunspot region AR8143
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1998/01/23 | 1 | 10 | AXX | S35E72 | |
| 1998/01/24 | 8 | 80 | CAO | S35E59 | |
| 1998/01/25 | 10 | 180 | CAO | S34E47 | |
| 1998/01/26 | 14 | 200 | ESO | S35E36 | |
| 1998/01/27 | 17 | 250 | FSI | S36E23 | |
| 1998/01/28 | 21 | 260 | FAI | S36E10 | |
| 1998/01/29 | 17 | 460 | FAI | S36W04 | |
| 1998/01/30 | 10 | 170 | FHO | S36W16 | |
| 1998/01/31 | 3 | 100 | HSX | S33W34 | |
| 1998/02/01 | 3 | 90 | HSX | S35W51 | |
| 1998/02/02 | 2 | 110 | HSX | S35W64 | |
| 1998/02/03 | 1 | 110 | HSX | S35W75 | |
| 1998/02/04 | 1 | 60 | HSX | S36W90 |
| B | C |
|---|---|
| 4 | 1 |
The top 5 solar flares from sunspot region 8143
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C2.36 | 1998/01/29 | 01:40 | 01:50 | 01:58 | |
| 2 | B7.41 | 1998/01/26 | 09:42 | 09:47 | 09:51 | |
| 3 | B6.43 | 1998/01/23 | 03:55 | 04:00 | 04:05 | |
| 4 | B4.37 | 1998/01/30 | 01:01 | 01:07 | 01:19 | |
| 5 | B3.37 | 1998/01/26 | 06:42 | 06:57 | 07:06 |
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| Monthly mean Sunspot Number | |
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