| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 1998/10/14 | 8 | 40 | CAO | N15E02 | |
| 1998/10/15 | 13 | 110 | DSO | N15W12 | |
| 1998/10/16 | 14 | 80 | DSO | N15W26 | |
| 1998/10/17 | 15 | 120 | CSO | N15W41 | |
| 1998/10/18 | 10 | 170 | CAO | N16W55 | |
| 1998/10/19 | 10 | 290 | DAO | N15W69 | |
| 1998/10/20 | 5 | 190 | DAO | N15W82 | |
| 1998/10/21 | 2 | 60 | DAO | N17W93 |
| C | M |
|---|---|
| 7 | 3 |
| Inizio | Massimo | Fine | ||||
|---|---|---|---|---|---|---|
| 1 | M3.44 | 1998/10/18 | 01:38 | 01:45 | 01:52 | |
| 2 | M1.3 | 1998/10/17 | 18:39 | 18:51 | 18:58 | |
| 3 | M1.17 | 1998/10/18 | 23:51 | 00:01 | 00:27 | |
| 4 | C7.37 | 1998/10/17 | 22:17 | 22:28 | 22:38 | |
| 5 | C3.86 | 1998/10/16 | 21:23 | 21:31 | 21:36 | |
| 6 | C3.76 | 1998/10/18 | 05:33 | 05:38 | 05:49 | |
| 7 | C1.76 | 1998/10/17 | 21:34 | 21:40 | 22:01 | |
| 8 | C1.51 | 1998/10/13 | 19:29 | 19:49 | 20:03 | |
| 9 | C1.29 | 1998/10/20 | 05:19 | 05:22 | 05:25 | |
| 10 | C1.13 | 1998/10/17 | 14:28 | 14:34 | 14:42 |
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| Ultimo brillamento X | 2026/04/24 | X2.5 |
| Ultimo brillamento M | 2026/05/17 | M1.4 |
| 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 | 90.4 +11.1 |
| Ultimi 30 giorni | 99.3 +8.3 |