| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 1998/04/15 | 2 | 10 | AXX | N30W12 | |
| 1998/04/16 | 9 | 100 | DAO | N31W24 | |
| 1998/04/17 | 9 | 50 | DAO | N31W41 | |
| 1998/04/18 | 5 | 30 | CRO | N31W51 | |
| 1998/04/19 | 1 | 0 | AXX | N33W59 |
| M |
|---|
| 3 |
| Inizio | Massimo | Fine | ||||
|---|---|---|---|---|---|---|
| 1 | M1.29 | 1998/04/15 | 14:58 | 15:11 | 15:20 | |
| 2 | M1.15 | 1998/04/15 | 07:37 | 07:46 | 07:54 | |
| 3 | M1.06 | 1998/04/15 | 11:55 | 12:33 | 12:42 |
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| Ultimo brillamento X | 2026/04/24 | X2.5 |
| Ultimo brillamento M | 2026/05/16 | M1.9 |
| Ultima tempesta geomagnetica | 2026/05/15 | 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 | 93.3 +14 |
| Ultimi 30 giorni | 96 +4.2 |