Sunspot region AR8403
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1998/12/04 | 1 | 20 | HSX | N20E50 | |
| 1998/12/05 | 1 | 30 | HSX | N19E38 | |
| 1998/12/06 | 1 | 60 | HSX | N19E26 | |
| 1998/12/07 | 4 | 50 | CSO | N19E15 | |
| 1998/12/08 | 1 | 40 | HSX | N20W02 | |
| 1998/12/09 | 1 | 40 | HSX | N20W15 | |
| 1998/12/10 | 1 | 40 | HSX | N20W28 | |
| 1998/12/11 | 1 | 30 | HSX | N21W41 | |
| 1998/12/12 | 1 | 40 | HSX | N20W54 | |
| 1998/12/13 | 1 | 30 | HSX | N20W66 | |
| 1998/12/14 | 1 | 20 | AXX | N20W80 |
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| Monthly mean Sunspot Number | |
|---|---|
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