| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 1999/02/09 | 1 | 0 | AXX | S29E48 | |
| 1999/02/10 | 2 | 0 | AXX | S30E39 | |
| 1999/02/15 | 6 | 70 | DRO | S30W30 | |
| 1999/02/16 | 9 | 90 | DRO | S30W43 | |
| 1999/02/17 | 7 | 90 | DAO | S30W57 | |
| 1999/02/18 | 6 | 140 | DAO | S30W69 | |
| 1999/02/19 | 6 | 120 | DAO | S29W80 | |
| 1999/02/20 | 9 | 130 | DAO | S28W94 |
| C |
|---|
| 2 |
| Inizio | Massimo | Fine | ||||
|---|---|---|---|---|---|---|
| 1 | C4.67 | 1999/02/19 | 00:48 | 00:54 | 01:11 | |
| 2 | C2.06 | 1999/02/18 | 16:01 | 16:05 | 16:12 |
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| Ultimo brillamento X | 2026/04/24 | X2.5 |
| Ultimo brillamento M | 2026/05/22 | M2.3 |
| 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 | 87.5 +8.2 |
| Ultimi 30 giorni | 95.7 +3.6 |