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 |
Latest news
Wednesday, 14 May 2025
Another X-flare! Potent sunspot region 4087!
Tuesday, 13 May 2025
X1.1 solar flare from sunspot region 4086
Tuesday, 15 April 2025
CME arrival, G3 storm watch
Latest forum messages
AR4087 165Solar Transit, Artifacts, or Radiation 15Unexplained proton activity 79AR 14079 171AR 5395 11
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| Last M-flare | 2025/05/15 | M2.1 |
| Last geomagnetic storm | 2025/05/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
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