| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 1997/08/06 | 6 | 10 | BXO | N21W35 | |
| 1997/08/07 | 11 | 100 | DAO | N21W48 | |
| 1997/08/08 | 14 | 100 | DAO | N21W62 | |
| 1997/08/09 | 8 | 110 | DSO | N23W74 | |
| 1997/08/10 | 5 | 30 | CSO | N21W86 |
| B | C | M |
|---|---|---|
| 5 | 1 | 1 |
| Inizio | Massimo | Fine | ||||
|---|---|---|---|---|---|---|
| 1 | M1.13 | 1997/08/09 | 16:30 | 16:34 | 16:38 | |
| 2 | C1.37 | 1997/08/09 | 12:04 | 12:13 | 12:22 | |
| 3 | B7.11 | 1997/08/09 | 16:07 | 16:13 | 16:15 | |
| 4 | B6.4 | 1997/08/06 | 05:59 | 06:06 | 06:12 | |
| 5 | B2.71 | 1997/08/07 | 13:02 | 13:06 | 13:08 | |
| 6 | B2.36 | 1997/08/08 | 12:47 | 12:51 | 12:55 | |
| 7 | B1.39 | 1997/08/07 | 11:36 | 11:39 | 11:41 |
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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 | 91.5 +12.2 |
| Ultimi 30 giorni | 94.7 +1.9 |