| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 1998/09/17 | 2 | 40 | CSO | S30E52 | |
| 1998/09/18 | 3 | 30 | CSO | S28E37 | |
| 1998/09/19 | 8 | 40 | DSO | S25E25 | |
| 1998/09/20 | 10 | 80 | DSO | S30E11 | |
| 1998/09/21 | 15 | 70 | DSI | S29W02 | |
| 1998/09/22 | 19 | 90 | CSO | S30W13 | |
| 1998/09/23 | 13 | 70 | DSO | S29W27 | |
| 1998/09/24 | 10 | 50 | CAO | S29W40 | |
| 1998/09/25 | 5 | 30 | CSO | S28W54 | |
| 1998/09/26 | 2 | 10 | BXO | S27W67 |
| C |
|---|
| 1 |
| Inizio | Massimo | Fine | ||||
|---|---|---|---|---|---|---|
| 1 | C2.2 | 1998/09/20 | 09:44 | 09:49 | 09:53 |
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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 | 88.6 +9.3 |
| Ultimi 30 giorni | 99.4 +8.5 |