| Número de manchas solares |
Tamaño | Clase Magn. | Clase Mancha | Ubicación | |
|---|---|---|---|---|---|
| 10/12/1999 | 1 | 50 | HSX | S15E58 | |
| 11/12/1999 | 1 | 30 | HSX | S14E44 | |
| 12/12/1999 | 2 | 30 | CSO | S15E31 | |
| 13/12/1999 | 2 | 30 | CSO | S14E19 | |
| 14/12/1999 | 5 | 20 | CSO | S13E05 | |
| 15/12/1999 | 1 | 10 | HSX | S13W08 | |
| 16/12/1999 | 6 | 20 | BXO | S14W20 | |
| 17/12/1999 | 10 | 30 | BXO | S14W27 | |
| 18/12/1999 | 10 | 20 | BXO | S14W40 | |
| 19/12/1999 | 2 | 0 | AXX | S16W53 |
| C |
|---|
| 4 |
| Inicio | Máximo | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | C3.21 | 09/12/1999 | 19:49 | 19:58 | 20:17 | |
| 2 | C3.17 | 16/12/1999 | 08:31 | 08:36 | 08:45 | |
| 3 | C3.01 | 19/12/1999 | 19:27 | 19:31 | 19:35 | |
| 4 | C1.67 | 11/12/1999 | 07:30 | 07:39 | 07:45 |
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| Último evento clase X | 08/12/2025 | X1.1 |
| Último evento clase M | 29/12/2025 | M1.0 |
| Últimas tormentas geomagnéticas | 22/12/2025 | Kp5 (G1) |
| Días sin manchas | |
|---|---|
| Último día sin manchas | 08/06/2022 |
| Promedio de manchas solares mensuales | |
|---|---|
| noviembre 2025 | 91.8 -22.8 |
| diciembre 2025 | 116.5 +24.7 |
| Last 30 days | 116.2 +30.6 |