Sunspot region AR8649
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/07/28 | 6 | 30 | DAO | S15E09 | |
| 1999/07/29 | 17 | 100 | DAO | S15W05 | |
| 1999/07/30 | 21 | 100 | DAO | S15W16 | |
| 1999/07/31 | 25 | 170 | DAO | S15W30 | |
| 1999/08/01 | 21 | 110 | CAO | S15W44 | |
| 1999/08/02 | 8 | 50 | CAO | S15W54 | |
| 1999/08/03 | 2 | 10 | AXX | S15W66 | |
| 1999/08/04 | 1 | 10 | AXX | S16W80 |
| C | M |
|---|---|
| 5 | 1 |
The top 6 solar flares from sunspot region 8649
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M2.53 | 1999/07/30 | 15:09 | 15:20 | 15:26 | |
| 2 | C7.07 | 1999/07/29 | 12:45 | 12:55 | 13:04 | |
| 3 | C5.29 | 1999/07/30 | 12:18 | 12:24 | 12:27 | |
| 4 | C3.7 | 1999/07/29 | 10:07 | 10:11 | 10:14 | |
| 5 | C3.43 | 1999/07/29 | 13:59 | 14:02 | 14:04 | |
| 6 | C2.83 | 1999/08/04 | 01:19 | 01:22 | 01:27 |
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| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
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