| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 1997/05/07 | 1 | 90 | HAX | N20E58 | |
| 1997/05/08 | 1 | 70 | HSX | N20E45 | |
| 1997/05/09 | 1 | 80 | HSX | N21E27 | |
| 1997/05/10 | 4 | 90 | CSO | N21E20 | |
| 1997/05/11 | 2 | 80 | HSX | N21E07 | |
| 1997/05/12 | 2 | 80 | HSX | N21W06 | |
| 1997/05/13 | 2 | 60 | HSX | N21W19 | |
| 1997/05/14 | 5 | 70 | CSO | N20W31 | |
| 1997/05/15 | 7 | 70 | CSO | N20W44 | |
| 1997/05/16 | 5 | 50 | CAO | N20W58 | |
| 1997/05/17 | 5 | 30 | CRO | N21W70 | |
| 1997/05/18 | 1 | 0 | AXX | N24W82 |
| B | C |
|---|---|
| 2 | 1 |
| Inizio | Massimo | Fine | ||||
|---|---|---|---|---|---|---|
| 1 | C1.81 | 1997/05/12 | 04:42 | 04:55 | 05:26 | |
| 2 | B2.7 | 1997/05/16 | 12:56 | 13:01 | 13:07 | |
| 3 | B1.59 | 1997/05/06 | 14:04 | 14:07 | 14:13 |
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| Ultimo brillamento X | 2026/03/30 | X1.5 |
| Ultimo brillamento M | 2026/04/09 | M1.0 |
| Ultima tempesta geomagnetica | 2026/04/03 | Kp7- (G3) |
| Giorni senza macchie | |
|---|---|
| Ultimi 365 giorni | 3 giorni |
| 2026 | 3 giorni (3%) |
| Ultimo giorno senza macchie | 2026/02/24 |
| Media mensile Numero di Macchie Solari | |
|---|---|
| marzo 2026 | 85.9 +7.7 |
| aprile 2026 | 94.2 +8.3 |
| Ultimi 30 giorni | 94.7 +35.4 |