Sunspot region AR8674
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/08/21 | 5 | 180 | EKO | S24E66 | |
| 1999/08/22 | 10 | 400 | FAO | S25E60 | |
| 1999/08/23 | 18 | 440 | FAI | S25E48 | |
| 1999/08/24 | 27 | 470 | FAI | S25E35 | |
| 1999/08/25 | 29 | 390 | FAI | S25E23 | |
| 1999/08/26 | 23 | 340 | FAI | S24E11 | |
| 1999/08/27 | 53 | 440 | FAI | S25W03 | |
| 1999/08/28 | 72 | 770 | FKC | S24W16 | |
| 1999/08/29 | 87 | 730 | FKC | S24W28 | |
| 1999/08/30 | 69 | 700 | FAC | S23W39 | |
| 1999/08/31 | 45 | 480 | FAI | S24W51 | |
| 1999/09/01 | 22 | 250 | FAI | S23W61 | |
| 1999/09/02 | 9 | 150 | EAO | S24W73 | |
| 1999/09/03 | 6 | 60 | CAO | S26W87 |
| C | M | X |
|---|---|---|
| 15 | 11 | 1 |
The top 10 solar flares from sunspot region 8674
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | X1.41 | 1999/08/20 | 23:03 | 23:08 | 23:10 | |
| 2 | M7.94 | 1999/08/27 | 12:50 | 13:07 | 13:22 | |
| 3 | M5.49 | 1999/08/30 | 17:23 | 18:05 | 18:21 | |
| 4 | M5.33 | 1999/08/21 | 16:30 | 16:34 | 16:37 | |
| 5 | M5.23 | 1999/08/25 | 01:32 | 01:36 | 01:40 | |
| 6 | M4.39 | 1999/08/27 | 16:23 | 16:36 | 17:07 | |
| 7 | M4.01 | 1999/08/28 | 00:50 | 01:02 | 01:16 | |
| 8 | M2.57 | 1999/08/20 | 12:36 | 14:18 | 17:06 | |
| 9 | M1.73 | 1999/08/20 | 18:25 | 18:29 | 18:32 | |
| 10 | M1.41 | 1999/08/22 | 15:46 | 15:51 | 15:54 |
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|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
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