Sunspot region AR8700
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/09/13 | 2 | 30 | HSX | N12E81 | |
| 1999/09/14 | 13 | 140 | EAO | N14E71 | |
| 1999/09/15 | 17 | 140 | EAO | N14E59 | |
| 1999/09/16 | 18 | 130 | EAO | N14E45 | |
| 1999/09/17 | 25 | 140 | EAO | N14E31 | |
| 1999/09/18 | 30 | 170 | DAI | N13E20 | |
| 1999/09/19 | 31 | 110 | DSI | N13E07 | |
| 1999/09/20 | 26 | 70 | DRI | N12W05 | |
| 1999/09/21 | 18 | 50 | DSO | N12W19 | |
| 1999/09/22 | 16 | 40 | CSO | N13W33 | |
| 1999/09/23 | 13 | 40 | CRO | N13W47 | |
| 1999/09/24 | 6 | 10 | BXO | N12W61 | |
| 1999/09/25 | 8 | 10 | BXO | N13W75 |
| C | M |
|---|---|
| 8 | 1 |
The top 9 solar flares from sunspot region 8700
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.11 | 1999/09/16 | 03:23 | 03:31 | 03:35 | |
| 2 | C3.46 | 1999/09/18 | 14:14 | 14:21 | 14:33 | |
| 3 | C3.17 | 1999/09/15 | 11:56 | 12:03 | 12:21 | |
| 4 | C3.11 | 1999/09/13 | 17:23 | 17:32 | 17:38 | |
| 5 | C3.09 | 1999/09/17 | 05:05 | 05:12 | 05:42 | |
| 6 | C2.51 | 1999/09/17 | 13:53 | 13:57 | 14:02 | |
| 7 | C2.43 | 1999/09/19 | 03:09 | 03:16 | 03:24 | |
| 8 | C1.74 | 1999/09/15 | 21:04 | 21:05 | 21:06 | |
| 9 | C1.67 | 1999/09/22 | 07:04 | 07:10 | 07:18 |
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Space weather facts
| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/04 | M6.0 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 186 +94.2 |
| Last 30 days | 106.3 +12.6 |