| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 1997/04/15 | 2 | 10 | CRO | S23E20 | |
| 1997/04/16 | 13 | 40 | CRO | S22E06 | |
| 1997/04/19 | 3 | 10 | BXO | S23W34 |
| B | C |
|---|---|
| 4 | 1 |
| Inizio | Massimo | Fine | ||||
|---|---|---|---|---|---|---|
| 1 | C2.07 | 1997/04/15 | 14:00 | 14:20 | 14:26 | |
| 2 | B9 | 1997/04/15 | 09:57 | 10:02 | 10:05 | |
| 3 | B7.79 | 1997/04/15 | 10:10 | 10:19 | 10:30 | |
| 4 | B4.53 | 1997/04/15 | 20:04 | 20:07 | 20:09 | |
| 5 | B2.21 | 1997/04/15 | 06:41 | 06:45 | 06:47 |
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| Ultimo brillamento X | 2026/02/04 | X4.21 |
| Ultimo brillamento M | 2026/02/25 | M2.4 |
| Ultima tempesta geomagnetica | 2026/03/03 | Kp5 (G1) |
| Giorni senza macchie | |
|---|---|
| Ultimi 365 giorni | 3 giorni |
| 2026 | 3 giorni (5%) |
| Ultimo giorno senza macchie | 2026/02/24 |
| Media mensile Numero di Macchie Solari | |
|---|---|
| febbraio 2026 | 78.2 -34.3 |
| marzo 2026 | 75 -3.2 |
| Ultimi 30 giorni | 59.2 -65.5 |