| Número de manchas solares |
Tamaño | Clase Magn. | Clase Mancha | Ubicación | |
|---|---|---|---|---|---|
| 07/12/1999 | 4 | 20 | BXO | N09E47 | |
| 08/12/1999 | 4 | 20 | CRO | N10E35 | |
| 09/12/1999 | 6 | 20 | CSO | N11E20 | |
| 10/12/1999 | 10 | 50 | DSO | N11E07 | |
| 11/12/1999 | 14 | 90 | DAO | N12W07 | |
| 12/12/1999 | 16 | 40 | CRO | N13W20 | |
| 13/12/1999 | 7 | 10 | BXO | N12W35 | |
| 14/12/1999 | 3 | 0 | BXO | N12W49 | |
| 15/12/1999 | 1 | 0 | AXX | N15W69 |
| C |
|---|
| 4 |
| Inicio | Máximo | Fin | ||||
|---|---|---|---|---|---|---|
| 1 | C4.13 | 11/12/1999 | 03:22 | 03:33 | 03:45 | |
| 2 | C3.96 | 08/12/1999 | 02:29 | 02:46 | 03:05 | |
| 3 | C1.71 | 07/12/1999 | 16:10 | 16:14 | 16:18 | |
| 4 | C1.59 | 08/12/1999 | 06:20 | 06:24 | 06:28 |
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| Último evento clase X | 24/04/2026 | X2.5 |
| Último evento clase M | 28/04/2026 | M1.11 |
| Últimas tormentas geomagnéticas | 20/04/2026 | Kp5 (G1) |
| Días sin manchas | |
|---|---|
| Last 365 days | 3 días |
| 2026 | 3 días (3%) |
| Último día sin manchas | 24/02/2026 |
| Promedio de manchas solares mensuales | |
|---|---|
| abril 2026 | 79.3 -6.6 |
| Last 30 days | 90.3 -1 |