| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 1999/04/04 | 5 | 10 | BXO | N12E58 | |
| 1999/04/05 | 6 | 10 | BXO | N11E45 | |
| 1999/04/06 | 11 | 50 | CSO | N12E32 | |
| 1999/04/07 | 11 | 30 | CSO | N12E18 | |
| 1999/04/08 | 14 | 80 | DAO | N11E05 | |
| 1999/04/09 | 11 | 70 | DSO | N12W10 | |
| 1999/04/10 | 5 | 50 | DSO | N11W23 | |
| 1999/04/11 | 6 | 20 | DRO | N11W37 | |
| 1999/04/12 | 4 | 10 | BXO | N11W49 |
| C |
|---|
| 4 |
| Inizio | Massimo | Fine | ||||
|---|---|---|---|---|---|---|
| 1 | C2.77 | 1999/04/03 | 14:52 | 15:01 | 15:09 | |
| 2 | C1.18 | 1999/04/03 | 18:12 | 18:19 | 18:40 | |
| 3 | C1.09 | 1999/04/03 | 11:37 | 11:42 | 11:48 | |
| 4 | C1.08 | 1999/04/06 | 20:35 | 20:40 | 20:42 |
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| Ultimo brillamento X | 2026/04/24 | X2.5 |
| Ultimo brillamento M | 2026/05/10 | M5.7 |
| Ultima tempesta geomagnetica | 2026/05/05 | Kp5 (G1) |
| Giorni senza macchie | |
|---|---|
| Ultimi 365 giorni | 3 giorni |
| 2026 | 3 giorni (2%) |
| Ultimo giorno senza macchie | 2026/02/24 |
| Media mensile Numero di Macchie Solari | |
|---|---|
| aprile 2026 | 79.3 -6.6 |
| maggio 2026 | 112.3 +33 |
| Ultimi 30 giorni | 92.5 -8.1 |