| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 1999/03/31 | 3 | 140 | HSX | S28E61 | |
| 1999/04/01 | 4 | 90 | CAO | S28E47 | |
| 1999/04/02 | 4 | 110 | CAO | S28E36 | |
| 1999/04/03 | 7 | 70 | CSO | S28E23 | |
| 1999/04/04 | 10 | 70 | DSO | S28E11 | |
| 1999/04/05 | 10 | 50 | DSO | S28W02 | |
| 1999/04/06 | 11 | 50 | DSO | S28W15 | |
| 1999/04/07 | 6 | 20 | BXO | S28W27 | |
| 1999/04/08 | 4 | 10 | BXO | S27W40 |
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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 | 110 +30.7 |
| Ultimi 30 giorni | 94.1 -4 |