Sunspot region AR8747
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/10/29 | 4 | 40 | CRO | N10E59 | |
| 1999/10/30 | 8 | 190 | DAO | N11E44 | |
| 1999/10/31 | 13 | 210 | EAO | N12E30 | |
| 1999/11/01 | 12 | 160 | DAO | N11E17 | |
| 1999/11/02 | 11 | 120 | DAO | N12E03 | |
| 1999/11/03 | 13 | 100 | DAO | N12W11 | |
| 1999/11/04 | 11 | 90 | ESO | N12W25 | |
| 1999/11/05 | 7 | 90 | DSO | N11W39 | |
| 1999/11/06 | 5 | 120 | DSO | N11W52 | |
| 1999/11/07 | 6 | 70 | CSO | N10W64 | |
| 1999/11/08 | 3 | 30 | CAO | N12W78 | |
| 1999/11/09 | 1 | 30 | HAX | N12W90 |
| C |
|---|
| 6 |
The top 6 solar flares from sunspot region 8747
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C4.87 | 1999/10/31 | 17:16 | 17:18 | 17:20 | |
| 2 | C2.54 | 1999/11/01 | 00:12 | 00:30 | 00:43 | |
| 3 | C2.41 | 1999/10/31 | 18:24 | 18:31 | 18:37 | |
| 4 | C2.39 | 1999/10/29 | 20:04 | 20:12 | 20:18 | |
| 5 | C2.31 | 1999/10/28 | 14:39 | 14:46 | 14:51 | |
| 6 | C1.56 | 1999/11/01 | 13:07 | 13:16 | 13:28 |
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| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
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| Last 30 days | 166.1 +21.7 |