Sunspot region AR8534
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/05/06 | 1 | 30 | HAX | S18E74 | |
| 1999/05/07 | 3 | 40 | CAO | S18E60 | |
| 1999/05/08 | 1 | 40 | HSX | S18E47 | |
| 1999/05/09 | 4 | 60 | CSO | S17E35 | |
| 1999/05/10 | 4 | 40 | CSO | S18E21 | |
| 1999/05/11 | 4 | 30 | CSO | S18E08 | |
| 1999/05/12 | 11 | 50 | CAO | S18W06 | |
| 1999/05/13 | 14 | 90 | DAI | S18W19 | |
| 1999/05/14 | 11 | 80 | DAO | S17W33 | |
| 1999/05/15 | 10 | 90 | DAO | S17W47 | |
| 1999/05/16 | 6 | 90 | DAO | S17W60 | |
| 1999/05/17 | 1 | 50 | HAX | S16W77 | |
| 1999/05/18 | 3 | 60 | CRO | S22W85 |
| C | M |
|---|---|
| 8 | 3 |
The top 10 solar flares from sunspot region 8534
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.8 | 1999/05/16 | 13:45 | 13:50 | 13:53 | |
| 2 | M1.6 | 1999/05/16 | 17:20 | 17:25 | 17:28 | |
| 3 | M1.4 | 1999/05/17 | 00:18 | 00:24 | 00:28 | |
| 4 | C8.14 | 1999/05/16 | 20:07 | 20:13 | 20:23 | |
| 5 | C8.03 | 1999/05/17 | 17:51 | 18:03 | 18:10 | |
| 6 | C7.71 | 1999/05/17 | 09:00 | 09:07 | 09:16 | |
| 7 | C3.5 | 1999/05/06 | 10:40 | 10:48 | 11:03 | |
| 8 | C1.51 | 1999/05/12 | 19:28 | 19:30 | 19:33 | |
| 9 | C1.44 | 1999/05/16 | 16:54 | 16:57 | 17:00 | |
| 10 | C1.34 | 1999/05/14 | 09:25 | 09:29 | 09:32 |
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| Last M-flare | 2024/12/23 | M1.0 |
| Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
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