Sunspot region AR8525
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/04/30 | 1 | 70 | HSX | N15E68 | |
| 1999/05/01 | 10 | 200 | FSO | N16E62 | |
| 1999/05/02 | 12 | 280 | FSO | N17E49 | |
| 1999/05/03 | 16 | 290 | FSO | N17E34 | |
| 1999/05/04 | 16 | 260 | FSO | N18E24 | |
| 1999/05/05 | 19 | 210 | FSO | N18E10 | |
| 1999/05/06 | 15 | 170 | FSO | N18W02 | |
| 1999/05/07 | 11 | 160 | CSO | N18W16 | |
| 1999/05/08 | 6 | 120 | CSO | N16W31 | |
| 1999/05/09 | 1 | 150 | HSX | N17W49 | |
| 1999/05/10 | 1 | 140 | HSX | N17W60 | |
| 1999/05/11 | 1 | 110 | HSX | N16W74 | |
| 1999/05/12 | 1 | 90 | HSX | N15W90 |
| C | M |
|---|---|
| 3 | 1 |
The top 4 solar flares from sunspot region 8525
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.07 | 1999/05/07 | 14:23 | 14:32 | 14:59 | |
| 2 | C3.66 | 1999/04/29 | 08:25 | 08:29 | 08:35 | |
| 3 | C3.33 | 1999/05/07 | 18:28 | 18:34 | 18:36 | |
| 4 | C1.87 | 1999/05/06 | 13:19 | 13:30 | 13:51 |
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| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/02 | M3.5 |
| Last geomagnetic storm | 2026/03/25 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| April 2026 | 130 +51.8 |
| Last 30 days | 91.6 +20.3 |
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