Sunspot region AR8790
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/12/07 | 4 | 20 | BXO | N09E47 | |
| 1999/12/08 | 4 | 20 | CRO | N10E35 | |
| 1999/12/09 | 6 | 20 | CSO | N11E20 | |
| 1999/12/10 | 10 | 50 | DSO | N11E07 | |
| 1999/12/11 | 14 | 90 | DAO | N12W07 | |
| 1999/12/12 | 16 | 40 | CRO | N13W20 | |
| 1999/12/13 | 7 | 10 | BXO | N12W35 | |
| 1999/12/14 | 3 | 0 | BXO | N12W49 | |
| 1999/12/15 | 1 | 0 | AXX | N15W69 |
| C |
|---|
| 4 |
The top 4 solar flares from sunspot region 8790
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C4.13 | 1999/12/11 | 03:22 | 03:33 | 03:45 | |
| 2 | C3.96 | 1999/12/08 | 02:29 | 02:46 | 03:05 | |
| 3 | C1.71 | 1999/12/07 | 16:10 | 16:14 | 16:18 | |
| 4 | C1.59 | 1999/12/08 | 06:20 | 06:24 | 06:28 |
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Space weather facts
| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/06 | M8.1 |
| 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 | 167.7 +75.9 |
| Last 30 days | 107.1 +13.7 |