| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 1999/09/08 | 1 | 20 | HSX | N12E79 | |
| 1999/09/09 | 1 | 50 | HAX | N11E64 | |
| 1999/09/10 | 1 | 70 | HSX | N12E51 | |
| 1999/09/11 | 6 | 50 | CSO | N13E37 | |
| 1999/09/12 | 5 | 50 | CSO | N13E23 | |
| 1999/09/13 | 2 | 50 | DSO | N13E11 | |
| 1999/09/14 | 5 | 40 | HSX | N12W02 | |
| 1999/09/15 | 3 | 30 | CSO | N12W16 | |
| 1999/09/16 | 2 | 30 | CSO | N13W29 | |
| 1999/09/17 | 1 | 30 | HSX | N13W44 | |
| 1999/09/18 | 1 | 20 | HSX | N12W56 | |
| 1999/09/19 | 1 | 30 | HSX | N12W71 | |
| 1999/09/20 | 1 | 0 | AXX | N12W83 |
| C |
|---|
| 1 |
| Inizio | Massimo | Fine | ||||
|---|---|---|---|---|---|---|
| 1 | C3.74 | 1999/09/13 | 16:30 | 16:45 | 17:04 |
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| Ultimo brillamento X | 2026/04/24 | X2.5 |
| Ultimo brillamento M | 2026/05/07 | M2.6 |
| 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 |