| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 1999/04/04 | 8 | 10 | BXO | S26W02 | |
| 1999/04/05 | 17 | 100 | DAO | S26W15 | |
| 1999/04/06 | 23 | 290 | DAO | S26W28 | |
| 1999/04/07 | 21 | 260 | EAO | S26W42 | |
| 1999/04/08 | 14 | 210 | EAO | S26W55 | |
| 1999/04/09 | 5 | 130 | CAO | S26W68 | |
| 1999/04/10 | 3 | 130 | CAO | S28W82 |
| C |
|---|
| 5 |
| Inizio | Massimo | Fine | ||||
|---|---|---|---|---|---|---|
| 1 | C4.83 | 1999/04/05 | 23:01 | 23:09 | 23:15 | |
| 2 | C4.49 | 1999/04/03 | 20:44 | 20:50 | 20:58 | |
| 3 | C4.03 | 1999/04/03 | 22:16 | 22:20 | 22:23 | |
| 4 | C2.31 | 1999/04/03 | 20:00 | 20:17 | 20:26 | |
| 5 | C2.04 | 1999/04/03 | 13:39 | 13:44 | 13:47 |
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| Ultimo brillamento X | 2026/04/24 | X2.5 |
| Ultimo brillamento M | 2026/05/17 | M1.4 |
| Ultima tempesta geomagnetica | 2026/05/16 | Kp6- (G2) |
| 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 | 92.6 +13.3 |
| Ultimi 30 giorni | 97.4 +6.8 |